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DOI: 10.1055/s-0042-1749406
Endocrine Therapy of Adult Gender-Incongruent Individuals Seeking Gender Reaffirmation
- Abstract
- Introduction
- Assessment of the Gender-Incongruent Individuals Seeking Gender Reaffirmation
- Endocrine Therapy of GI Individuals-Seeking Gender Reaffirmation as Female (Transfeminine)
- Endocrine Therapy of GI Individuals Seeking Gender Reaffirmation as Male (Transmasculine)
- Conclusion
- References
Abstract
Gender-affirming hormone therapy (GAHT) is integral to the management of gender-incongruent (GI) individuals. GAHT greatly improves the quality of life for GI individuals. Current research about outcomes of GAHT and adverse events in adults receiving GAHT is limited in India and large cohort studies are absent. This document on medical management provides protocols for the prescribing clinician relating to counseling for GAHT, baseline evaluation, choice of therapy, targets for hormone therapy, clinical and biochemical monitoring, and perioperative hormone therapy.
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Keywords
gender-affirming hormone therapy - gender incongruent - transfeminine - transmasculine - transgender - hormone therapyIntroduction
Gender-affirming hormone therapy (GAHT) is a necessary medical intervention for gender-incongruent (GI) individuals seeking gender reaffirmation. However, not all GI individuals seek GAHT. Moreover, social taboo, lack of information, and poor family support lead to delayed medical consultation and account for complexities in the therapy. [1] An effective GAHT regimen suppresses endogenous sex-specific hormone secretion and maintains physiological levels of sex hormone that is consistent with the desired sex. The changes in secondary sexual characteristics facilitate gender presentation of the desired sex. Hormone therapy is associated with a lot of benefits but many risks are present as well, and unsupervised use of hormones is strongly discouraged.[2] The situation is often further complicated in India with prior breast surgery and/or prior bottom surgery in both transfeminine and transmasculine individuals without following an acceptable protocol-wise approach.[1] [3] [4] Educating the GI individuals undergoing GAHT about the onset and time course of physical changes induced by hormone treatment and the benefits and risks associated with hormone treatment is essential for a successful outcome. Nonspecialists might also be approached for help by GI individuals and can play an important role in counseling and referring them to a gender clinic.[5] Nonspecialists might also consider prescribing hormonal treatments while the patient is awaiting specialist consultation.[5] Tailoring the currently available protocols may be done within the context of accepted safety guidelines.[2] The practical suggestions on the assessment and management in this article are largely based on the experience of the author and the few existing national[6] and international[2] guidelines.
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Assessment of the Gender-Incongruent Individuals Seeking Gender Reaffirmation
People in a new gender role usually need lifelong support of maintenance hormone therapy, and specialist clinicians involved in the care of GI individuals should assess and evaluate the subjects before starting the GAHT.
Counseling
Following issues need to be discussed before starting hormone therapy:[6]
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Potential effects along with potential risks, limitations, and adverse effects of the hormone therapy.
-
Prospects of gamete conservation, even though associated with potential cost implications.
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Adoption of a healthy lifestyle with regard to body weight and substance abuse.
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Confirmation that the patient can understand the consequences and is capable of taking hormones in a responsible manner.
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That hormonal therapy is usually continued indefinitely, even following gender‐affirming surgeries.
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Baseline Evaluation[6]
Physical: Height, weight, body mass index, blood pressure, and examination of breasts and genitalia and digital rectal examination for prostate.
Laboratory investigation: Hemoglobin or hematocrit, glycosylated hemoglobin, potassium, urea, creatinine, lipid profile, thyroid function tests, liver function tests, prolactin, testosterone, estradiol, hepatitis B surface antigen, antihepatitis C antibody, venereal disease research laboratory test, and tests for human immunodeficiency virus. Karyotype testing is optional as is the evaluation of prostate-specific antigen.[6]
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Endocrine Therapy of GI Individuals-Seeking Gender Reaffirmation as Female (Transfeminine)
Estrogens and antiandrogens are commonly used in clinical practice, which effectively suppresses endogenous testosterone level and promotes feminization in transfeminine individuals. However, there is no randomized controlled trial data available to determine which route and preparation of estradiol and the type of antiandrogen are most effective.[7]
Estrogen Therapy
Estrogen is the cornerstone for feminization and estradiol level is to be maintained in the normal physiological range for cis-female. However, there are not lots of data on how best to achieve this. Typically, it requires supraphysiological doses ([Table 1]). Estrogen is not enough to suppress endogenous testosterone production and there is a need for concomitant antiandrogen or gonadotropin-releasing hormone (GnRH) analog therapy in most individuals. The estrogen dose requirement is more in those who are not receiving GnRH therapy and in those with preserved testes.[6] Estrogen therapy should be started at lower doses and titrated upward over the course of a year, similar to the induction of puberty in natal girls in whom rapid estrogen exposure leads to poor breast development.[8]
Preparations |
Dose |
---|---|
Oral estradiol (valerate) |
2.0–6.0 mg/day |
Transdermal estradiol patch |
25–200 µg/day (new patch every 3–5 days) |
Parenteral estradiol valerate |
5–30 mg IM every 2 weeks 2–10 mg IM every week |
Abbreviation: IM, intramuscular.
Breast growth, increased body fat, slowed growth of body and facial hair, decreased testicular size, and erectile function are the expected benefits of estrogen therapy. The time interval for the maximum benefits to occur varies across the transfeminine population and may take up to 18 to 24 months. Antiandrogenic therapy helps to achieve maximum change.[9]
Despite a lot of variability in the response to various doses of estradiol, there is a positive correlation between increasing doses and serum levels of estradiol and a negative correlation with serum testosterone.[8] However, a significant number of transfeminine individuals do not achieve the desired testosterone suppression despite reaching estradiol targets.[8]
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Adverse Effects of Estrogen Therapy
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Venous thromboembolism (VTE): Estrogens have increased risk of VTE. Increasing age and obesity are two important risk factors for VTE with estrogen use. Synthetic estrogen (ethinyl estradiol) and conjugated estrogens should be avoided because of the inability to regulate doses by measuring serum levels and possible increased risk of VTE.[2] [10] Despite insufficient data to inform associations between VTE and the dose, route, or duration of therapy, the strategy of changing to transdermal preparations are universally recommended based on data from observational studies of postmenopausal cis-gender women.[10] However, transdermal preparation is expensive, not readily available, and is not much successful in tropical climate.[6] Cessation of tobacco use should strongly be encouraged to avoid increased risk of VTE and cardiovascular complications.[7]
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Hyperprolactinemia: A rise in prolactin level with the potential for development of a prolactinoma is a concern but mostly with estrogen–cyproterone regimens and not with estrogen–spironolactone regimen.[2] [10]
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Breast cancer.[2]
-
Coronary artery disease.[2]
-
Cerebrovascular disease.[2]
-
Cholelithiasis.[2]
-
Hypertriglyceridemia.[2]
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Contraindications of Estrogen Therapy[6]
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Previous history of VTE
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History of estrogen-sensitive neoplasm
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Advanced stages of chronic liver disease
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Hypertriglyceridemia (relative contraindication)
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Progestin Therapy
The use of progestins for transfeminine individuals is controversial[7] and Endocrine Society Guideline recommends only estradiol as gender reaffirmation therapy.[2] However, evidence suggests that progesterone helps in feminization process, optimization of breast maturation, and increase in bone formation, and has possible cardiovascular health benefits.[11]
Adverse effects of progestin therapy: Increased potassium level, depression, weight gain, lipid changes, increase in breast cancer risk, and possible suppression of the pituitary adrenal axis.[12]
Progestin preparations: Oral micronized progesterone is preferred and likely to be more beneficial for transfeminine individuals ([Table 2]). Desired effects are unique to micronized progesterone and not present in synthetic progestins, which also have adverse effects distinct from micronized form of progesterone.[11] Though low-priced, medroxyprogesterone acetate has been associated with an elevated risk of cardiovascular disease and breast cancer.[10]
Preparations |
Dose |
---|---|
Oral micronized progesterone[11] |
200–300 mg/day |
Oral MPA[13] |
5–20 mg daily |
Parenteral MPA[9] |
150 mg IM every 3 months |
Abbreviations: MPA, medroxy progesterone acetate; IM, intramuscular.
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Androgen-Reducing Therapy
Suppression of testosterone production and/or blocking its effects contributes to minimizing male secondary sexual characters and allows the use of lower estradiol dosing. However, there are no unanimous recommendations for the use of any specific antiandrogens, and many options are available ([Table 3]). Androgen-reducing medications are the first-line therapy, as it reduces endogenous testosterone levels or activity. GnRH analogs are preferred the first line of therapy but spironolactone with/without finasteride is a reasonable alternative in a resource-limited settings.[3] Spironolactone facilitates breast augmentation and benefits facial hair growth but lacks an independent effect on androgen level.[8] Many transgender women seek breast augmentation due to dissatisfaction in hormonal therapy and spironolactone use is more common in those seeking augmentation. Spironolactone may have a negative impact on breast development in the presence of estrogen when it behaves as a competitive inhibitor.[8] Avoidance of spironolactone may maximize the breast growth but no study has confirmed this approach.
Preparation |
Dose |
Side effects and limitations |
---|---|---|
Spironolactone[7] |
100–300 mg daily |
Hypotension, hyperkalemia |
Finasteride[6] |
5 mg daily |
Liver toxicity, erectile dysfunction (not an issue in transfeminine individual) |
Cyproterone acetate[10] |
25–50 mg daily |
Hyperprolactinemia and meningioma; not available in India |
GnRH agonists[7] |
1. Triptorelin depot 3.75 mg monthly or 11.25 mg every 3 months (IM/SC) 2. Leuprolide 3.75 mg monthly or 11.25 mg every 3 months (IM/SC) 3. Goserelin 3.6 mg monthly or 10.8 mg every 3 months (SC) |
Decrease libido, decrease bone mineral density, expensive, and need to be injected |
Abbreviations: GnRH, gonadotropin-releasing hormone; IM/SC, intramuscular/subcutaneous; SC, subcutaneous.
Adverse effects of androgen-reducing therapy: GnRH analogs as antiandrogens, as proposed by the Endocrine Society Guidelines,[2] are well tolerated with satisfactory results. Cheaper alternatives (spironolactone and finasteride) may have some undesirable effects.
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Ancillary Therapy (Eflornithine and Laser)
Decrease in male-pattern hair growth may not be sufficiently achieved by hormone therapy alone and to achieve further cutaneous change, eflornithine and laser are often used as ancillary therapies.[14]
Eflornithine is an inhibitor of ornithine decarboxylase and reduces unwanted facial hair when applied twice daily in the area of skin under the chin. Improvement may be observed only after 8 weeks and needs to be continued for an indefinite period. On the other hand, laser reduces hair growth permanently and can be applied in a larger area.[14]
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Targets for Hormone Therapy
The biochemical targets for testosterone and estradiol in a transfeminine individual undergoing hormone therapy were laid down by the Endocrine Society[2] ([Table 4]) and adopted in the Indian consensus statement as well.[6]
Serum testosterone |
Less than 50 ng/dL |
Serum estradiol |
100–200 pg/mL |
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Monitoring
All GI individuals seeking gender reaffirmation as female with cross sex hormone therapy should check hormone levels to monitor adequacy of therapy, to avoid overtreatment (supraphysiologic levels >200 pg/mL), and to evaluate any upcoming adverse effects ([Table 5]). The effects of estrogen on cardiovascular disease in transfeminine individuals are not very conclusive, but show a trend toward an increased risk of heart disease. Presence of diabetes, tobacco abuse, and the use of oral ethinyl estradiol appear to be strongly associated with cardiovascular events.[9]
Abbreviations: DXA: dual-energy X-ray absorptiometry; LFT, liver function test.
Hormone therapy during and after sex reaffirmation surgery: [6]
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Estrogen should be stopped 4 weeks before surgery to reduce risk of VTE and patient may receive a single dose of GnRH for the interim period.
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GnRH and spironolactone may be stopped after orchiectomy.
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Reevaluate the need of hormones after surgery, and estrogen may be resumed 4 weeks postoperatively if there are no complications.
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Estrogen dose may be reduced after breast augmentation surgery.
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Only transdermal estrogen should be used if VTE is encountered during perioperative period.
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Endocrine Therapy of GI Individuals Seeking Gender Reaffirmation as Male (Transmasculine)
Testosterone is used to induce virilization and appears safe.[12] Different testosterone formulations are available in different parts of the globe. The most commonly prescribed regimens are discussed below ([Table 6]).
Preparations |
Dose |
---|---|
Testosterone gel (1.6%)[2] |
50–100 mg per day |
Testosterone depot (enanthate or cypionate)[2] |
100–200 mg IM every 2 weeks |
Testosterone undecanoate[2] |
1,000 mg every 12 weeks |
Abbreviation: IM, intramuscular.
Cessation of menses, increased facial and body hair, increased acne, changes in fat distribution, increase in muscle mass, and increase in libido occur within few months of initiation of androgen therapy. Deepening of the voice, atrophy of the vaginal epithelium, increased clitoral size, and male-pattern hair loss also occur over time with the continuation of the therapy. However, shorter stature and broader hips than biologic males and some degree of feminine subcutaneous fat distribution cannot be reversed with exogenous androgen therapy in most transmasculine individuals (unless testosterone is administered during the peripubertal period).[9] [10]
No differences were found regarding short-term safety, compliance, body composition, metabolic parameters, and general life satisfaction in three different testosterone formulations (testoviron depot 100 mg, testosterone gel 50 mg/die, and testosterone undecanoate 1,000 mg) evaluated in one study.[15] However, target testosterone levels are more easily achieved with parenteral therapy but more uniformly with transdermal therapy.[10] Androgen therapy may be continued lifelong to maintain the achieved virilization and appears safe even in elderly transmasculine individuals. Cessation of the therapy leads to hypogonadism with vasomotor symptoms and osteoporosis.[12]
Adverse Effects of Testosterone Therapy
Sustained intentional use of supraphysiologic dose of testosterone may produce following adverse reactions.[2]
-
Testosterone undecanoate is associated with the potential risk of oil pulmonary embolus.[12]
-
Worsening of cardiovascular risk factors (increase in hematocrit, decrease in high-density lipoprotein cholesterol, increase in triglycerides, increase in low-density lipoprotein cholesterol levels, increase in systolic blood pressure, and a decrease in adiponectin and leptin) is commonly observed.[12] Despite perceived negative impact of these risk factors, testosterone treatment does not result in adverse cardiovascular outcomes.[12]
-
Severe liver dysfunction (transaminases more than threefold upper limit of normal).[2]
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Sleep apnea.[10]
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Breast or uterine cancer:[2] Most guidelines raised the concern of increased risk of breast or endometrial cancer in association with androgen therapy in transmasculine patients, and hysterectomy may be considered to avoid the risk of endometrial cancer.[10]
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Therapy to Stop Menstrual Bleeding
If menstrual bleeding does not stop after initiation of testosterone (mostly with the use of transdermal or oral testosterone), a progestational agent or GnRH analog is used to stop the menstruation ([Table 7]).[12]
Preparations |
Dose |
---|---|
Oral lynestrenol[12] |
5–10 mg daily |
Oral medroxyprogesterone[12] |
5–10 mg daily |
Depot medroxyprogesterone[2] |
150 mg deep IM every 3 months |
GnRH analogs[2] |
1. Triptorelin depot 3.75 mg monthly or 11.25 mg every 3 months (IM/SC) 2. Leuprolide 3.75 mg monthly or 11.25 mg every 3 months (IM/SC) 3. Goserelin 3.6 mg monthly or 10.8 mg every 3 months (SC) |
Abbreviations: GnRH, gonadotropin-releasing hormone; IM, intramuscular; IM/SC, intramuscular/subcutaneous; SC, subcutaneous.
Transmasculine individuals mostly prefer testosterone or testosterone plus medroxyprogesterone. GnRH analogs are effective but rarely used given the costs of the therapy.[4] The progestational medication can be discontinued after ovariectomy.[12]
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Targets for Hormone Therapy
Transgender-specific hormone data for the monitoring purpose are lacking and the strategies used for cis-gender persons are usually recommended to be followed.[10] The biochemical targets for testosterone and estradiol in a transmasculine individual undergoing hormone therapy are laid down by the Endocrine Society ([Table 8]).[2]
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Monitoring
Testosterone level should carefully be monitored to avoid a prolonged hypogonadal state, if dosing is too low with a possibility of loss in bone mineral density, and to avoid exposures to high level, with a possibility of significant physiological and metabolic effects. Both testosterone and estradiol are necessary for bone health in men and women, respectively. Exogenous testosterone appears to have an anabolic effect on bone and is capable in preventing bone loss with adequate dose in transmasculine individuals. Hypogonadal states can result in clinically significant bone loss and need to be monitored ([Table 9]). It is not clear whether use of exogenous testosterone increases the risk of cardiovascular disease in transmasculine individuals or not. The role of testosterone in increasing the risk of cardiovascular events is debatable but testosterone significantly alters many cardiovascular risk markers (blood pressure, total cholesterol, high-density lipoprotein cholesterol, triglycerides, and inflammatory markers).[9]
Year |
Frequency |
Parameter to test |
---|---|---|
First year |
Every 3 months |
Weight, blood pressure, testosterone, estradiol (during the first 6 months and thereafter until uterine bleeding has ceased), hematocrit or hemoglobin, lipids, and DXA (who stop or are irregular in testosterone treatment) |
Second year onward |
One to two times per year |
Abbreviation: DXA: dual-energy X-ray absorptiometry.
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Cancer Screening
There are limited data on cancer outcomes for GI individuals as there are no large long-term prospective studies investigating cancer incidence and mortality in GI population. The currently available evidences do not show that GAHT increases the risk of cancer in GI individuals and hence, the very few existing transgender-specific cancer screening recommendations are mostly extrapolated based on evidence in the cis-gender population.[16] GI individuals who have undergone sex reaffirmation surgery may have a possibility of cancer from the residual reproductive tissue that may have been left behind after surgery.
A comprehensive cancer screening and prevention initiative is based on the best practices cancer screening protocol published recently.[16] In transfeminine patients, we conventionally follow cis-female guidelines for breast cancer screening, cis-male guidelines for prostate cancer screening, and annual anal pap smear who have multiple lifetime sexual partners. In transmasculine patients, we follow cis-female guidelines for breast cancer screening prior to bilateral mastectomy and cervical cancer screening prior to hysterectomy. Currently, there is no recommendation for breast cancer screening after bilateral mastectomy in this population.
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Human Papillomavirus (HPV) Vaccination
There is a high rate of human papillomavirus (HPV) infection among transfeminine individuals and among the men who have sex with men.[17] Vaccines against HPV were first introduced in 2006. Quadrivalent and 9-valent HPV vaccines (Gardasil and Gardasil 9) protect against anal, cervical, oropharyngeal, penile, vaginal, and vulvar cancers caused by HPV.[18] HPV vaccination ought to be suggested to all age-eligible adolescents and young adults regardless of behavioral or medical risk factors for HPV infection or disease. Although vaccination ideally occurs prior to HPV exposure (before onset of sexual activity), recommendations support vaccination of the vulnerable individuals who are within the recommended target age range for vaccination, even if they are already sexually active[17] ([Table 10]). Additional proof is required to develop national recommendations regarding appropriate screening and vaccination for HPV-related diseases among GI individuals in India. Shared clinical decision-making for adults aged 26 to 45 years ought to be based on following three information:[18]
Age |
Recommendation |
---|---|
Children and adults aged 9–26 years |
HPV vaccination is routinely recommended at age 11 or 12 years and can be given starting at age 9 years; catch-up HPV vaccination is recommended for all persons through age 26 years who are not adequately vaccinated |
Adults aged 26–45 years |
Catch-up HPV vaccination is not recommended for all adults aged >26 years; instead, shared clinical decision-making regarding HPV vaccination is recommended for some adults aged 27–45 years who are not adequately vaccinated |
Adults aged >45 years |
HPV vaccines are not recommended |
Abbreviation: HPV: human papillomavirus.
-
A long-term, mutually monogamous sexual partnership is not likely to acquire a new HPV infection and no vaccination is needed.
-
Vaccine effectiveness might be low among persons with multiple lifetime sex partners and likely previous infection with vaccine-type HPV and vaccination will not be helpful.
-
At any age, having a new sex partner is a risk for acquiring HPV infection and vaccination may be helpful.
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Conclusion
GAHT consistently improves quality of life and mental health and has modest effects on secondary sexual development. Adult GI individuals seeking GAHT require a safe and effective hormone regimen. Although hormone therapy is integral to the management, there is no uniformity in the dose, formulation, and mode of therapy in different gender clinics. Initiation of GAHT, monitoring the ongoing care, regular evaluation for adverse drug reactions, and monitoring for known cancer risks are the key factors for a successful hormone therapy.
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Conflicts of Interest
None.
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References
- 1 Sanyal D, Majumder A. Presentation of gender dysphoria: a perspective from eastern India. Indian J Endocrinol Metab 2016; 20 (01) 129-133
- 2 Hembree WC, Cohen-Kettenis PT, Gooren L. et al. Endocrine treatment of gender-dysphoric/gender-incongruent persons: an Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab 2017; 102 (11) 3869-3903 [published correction appears in J Clin Endocrinol Metab. 2018 Feb 1;103(2):699] [published correction appears in J Clin Endocrinol Metab. 2018 Jul 1;103(7):2758–2759]
- 3 Majumder A, Sanyal D. Outcome and preferences in male-to-female subjects with gender dysphoria: experience from eastern India. Indian J Endocrinol Metab 2017; 21 (01) 21-25
- 4 Majumder A, Sanyal D. Outcome and preferences in female-to-male subjects with gender dysphoria: experience from eastern India. Indian J Endocrinol Metab 2016; 20 (03) 308-311
- 5 Barrett J. Gender dysphoria: assessment and management for non-specialists. BMJ 2017; 357: j2866 DOI: 10.1136/bmj.j2866.
- 6 Majumder A, Chatterjee S, Maji D. et al. IDEA Group consensus statement on medical management of adult gender incongruent individuals seeking gender reaffirmation as female. Indian J Endocrinol Metab 2020; 24 (02) 128-135
- 7 Iwamoto SJ, Defreyne J, Rothman MS. et al. Health considerations for transgender women and remaining unknowns: a narrative review. Ther Adv Endocrinol Metab 2019; 10: 2042018819871166 DOI: 10.1177/2042018819871166.
- 8 Leinung MC, Feustel PJ, Joseph J. Hormonal treatment of transgender women with oral estradiol. Transgend Health 2018; 3 (01) 74-81
- 9 Unger CA. Hormone therapy for transgender patients. Transl Androl Urol 2016; 5 (06) 877-884
- 10 Safer JD, Tangpricha V. Care of transgender persons. N Engl J Med 2019; 381 (25) 2451-2460
- 11 Prior JC. Progesterone is important for transgender women's therapy-applying evidence for the benefits of progesterone in ciswomen. J Clin Endocrinol Metab 2019; 104 (04) 1181-1186
- 12 T'Sjoen G, Arcelus J, Gooren L, Klink DT, Tangpricha V. Endocrinology of transgender medicine. Endocr Rev 2019; 40 (01) 97-117
- 13 Jain J, Kwan D, Forcier M. Medroxyprogesterone acetate in gender-affirming therapy for transwomen: results from a retrospective study. J Clin Endocrinol Metab 2019; 104 (11) 5148-5156
- 14 Ginsberg BA. Dermatologic care of the transgender patient. Int J Womens Dermatol 2016; 3 (01) 65-67
- 15 Pelusi C, Costantino A, Martelli V. et al. Effects of three different testosterone formulations in female-to-male transsexual persons. J Sex Med 2014; 11 (12) 3002-3011
- 16 Sterling J, Garcia MM. Cancer screening in the transgender population: a review of current guidelines, best practices, and a proposed care model. Transl Androl Urol 2020; 9 (06) 2771-2785
- 17 Singh V, Gratzer B, Gorbach PM. et al. Transgender women have higher human papillomavirus prevalence than men who have sex with men-two U.S. cities, 2012-2014. Sex Transm Dis 2019; 46 (10) 657-662
- 18 Meites E, Szilagyi PG, Chesson HW, Unger ER, Romero JR, Markowitz LE. Human papillomavirus vaccination for adults: updated recommendations of the advisory committee on immunization practices. MMWR Morb Mortal Wkly Rep 2019; 68 (32) 698-702
Address for correspondence
Publication History
Article published online:
05 July 2022
© 2022. Association of Plastic Surgeons of India. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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References
- 1 Sanyal D, Majumder A. Presentation of gender dysphoria: a perspective from eastern India. Indian J Endocrinol Metab 2016; 20 (01) 129-133
- 2 Hembree WC, Cohen-Kettenis PT, Gooren L. et al. Endocrine treatment of gender-dysphoric/gender-incongruent persons: an Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab 2017; 102 (11) 3869-3903 [published correction appears in J Clin Endocrinol Metab. 2018 Feb 1;103(2):699] [published correction appears in J Clin Endocrinol Metab. 2018 Jul 1;103(7):2758–2759]
- 3 Majumder A, Sanyal D. Outcome and preferences in male-to-female subjects with gender dysphoria: experience from eastern India. Indian J Endocrinol Metab 2017; 21 (01) 21-25
- 4 Majumder A, Sanyal D. Outcome and preferences in female-to-male subjects with gender dysphoria: experience from eastern India. Indian J Endocrinol Metab 2016; 20 (03) 308-311
- 5 Barrett J. Gender dysphoria: assessment and management for non-specialists. BMJ 2017; 357: j2866 DOI: 10.1136/bmj.j2866.
- 6 Majumder A, Chatterjee S, Maji D. et al. IDEA Group consensus statement on medical management of adult gender incongruent individuals seeking gender reaffirmation as female. Indian J Endocrinol Metab 2020; 24 (02) 128-135
- 7 Iwamoto SJ, Defreyne J, Rothman MS. et al. Health considerations for transgender women and remaining unknowns: a narrative review. Ther Adv Endocrinol Metab 2019; 10: 2042018819871166 DOI: 10.1177/2042018819871166.
- 8 Leinung MC, Feustel PJ, Joseph J. Hormonal treatment of transgender women with oral estradiol. Transgend Health 2018; 3 (01) 74-81
- 9 Unger CA. Hormone therapy for transgender patients. Transl Androl Urol 2016; 5 (06) 877-884
- 10 Safer JD, Tangpricha V. Care of transgender persons. N Engl J Med 2019; 381 (25) 2451-2460
- 11 Prior JC. Progesterone is important for transgender women's therapy-applying evidence for the benefits of progesterone in ciswomen. J Clin Endocrinol Metab 2019; 104 (04) 1181-1186
- 12 T'Sjoen G, Arcelus J, Gooren L, Klink DT, Tangpricha V. Endocrinology of transgender medicine. Endocr Rev 2019; 40 (01) 97-117
- 13 Jain J, Kwan D, Forcier M. Medroxyprogesterone acetate in gender-affirming therapy for transwomen: results from a retrospective study. J Clin Endocrinol Metab 2019; 104 (11) 5148-5156
- 14 Ginsberg BA. Dermatologic care of the transgender patient. Int J Womens Dermatol 2016; 3 (01) 65-67
- 15 Pelusi C, Costantino A, Martelli V. et al. Effects of three different testosterone formulations in female-to-male transsexual persons. J Sex Med 2014; 11 (12) 3002-3011
- 16 Sterling J, Garcia MM. Cancer screening in the transgender population: a review of current guidelines, best practices, and a proposed care model. Transl Androl Urol 2020; 9 (06) 2771-2785
- 17 Singh V, Gratzer B, Gorbach PM. et al. Transgender women have higher human papillomavirus prevalence than men who have sex with men-two U.S. cities, 2012-2014. Sex Transm Dis 2019; 46 (10) 657-662
- 18 Meites E, Szilagyi PG, Chesson HW, Unger ER, Romero JR, Markowitz LE. Human papillomavirus vaccination for adults: updated recommendations of the advisory committee on immunization practices. MMWR Morb Mortal Wkly Rep 2019; 68 (32) 698-702