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Study finds a third of trans masculine individuals on testosterone still ovulate

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Physician-researcher Joyce Asseler and gynecologist Norah van Mello examined the ovarian tissue of transgender people who had their ovaries removed as part of their gender-affirming treatment. They had all used testosterone for at least one year prior to and at the time of the procedure. Their analysis shows that 17 of the 52 study participants (33%) show signs of recent ovulation in the ovarian tissue. The results have been published in Cell Reports Medicine.

"Trans masculine people are people born female but do not identify as such, for example they feel male, gender fluid or non-binary. Our examination of their ovarian tissue shows that 33% of them show signs of recent ovulation, despite being on testosterone and no longer menstruating," says Joyce Asseler, Ph.D. candidate at Amsterdam UMC.

Trans masculine people often use with testosterone to masculinize physically. This hormone usually stops them from menstruating. In that case, it is often assumed that ovulation does not take place.

"Testosterone apparently has a heterogenous effect on ovarian tissue. We don't know why one person ovulates and another person doesn't. In any case, we cannot explain this difference by the type of testosterone, or how long someone has been taking ," says Asseler.

People who ovulate can, in theory, also get pregnant. This also applies to these . For them, it is therefore necessary to use contraceptives if they are sexually active with someone who produces .

"The physical and mental consequences of an unplanned and unwanted pregnancy are enormous. It is important that trans masculine people and their are aware of this risk and act accordingly. Furthermore, this discovery can contribute to better care for trans masculine people who experience abdominal cramping," concludes Asseler.

More information: One third of amenorrheic trans masculine people on testosterone ovulates, Cell Reports Medicine (2024). DOI: 10.1016/j.xcrm.2024.101440. www.cell.com/cell-reports-medi … 2666-3791(24)00063-6

Journal information: Cell Reports Medicine
Provided by Amsterdam University Medical Center
Citation: Study finds a third of trans masculine individuals on testosterone still ovulate (2024, February 22) retrieved 24 April 2024 from https://medicalxpress.com/news/2024-02-trans-masculine-individuals-testosterone-ovulate.html
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