Testosterone Therapy and Fertility in Transgender Men: What You Need to Know
Lee Caperton • August 8, 2024
Testosterone therapy in transgender men (individuals assigned female at birth who are transitioning to male) can significantly impact fertility. As transgender men embark on their gender-affirming journey, understanding the potential effects of testosterone on reproductive health is crucial. Here's what the data suggests.
Impact on Ovarian Function
Suppression of Ovulation:
Testosterone therapy generally suppresses ovulation, which can reduce the likelihood of spontaneous conception while on hormone therapy. Read more about ovulation suppression.
Ovarian Reserve:
There is some evidence that long-term testosterone use may impact the ovarian reserve (the number of viable eggs). However, the exact degree of this impact is not fully understood. Some studies suggest that testosterone may cause changes in ovarian morphology and function, potentially reducing fertility over time. Read more about ovarian function and testosterone.
2. Reversibility
Potential for Reversibility:
While testosterone can suppress ovulation and alter ovarian function, some studies have shown that fertility may return if testosterone is stopped. The extent to which fertility can be fully restored varies from person to person and depends on factors like age, duration of testosterone therapy, and overall reproductive health. Explore the potential for reversibility.
Egg Freezing Before Transition: Because the long-term impact of testosterone on fertility is not fully predictable, some transgender men choose to freeze their eggs before starting hormone therapy. This option is often recommended by healthcare providers to preserve future fertility potential.
3. Pregnancy after Testosterone Therapy
Pregnancy Outcomes:
There have been cases where transgender men have successfully conceived after discontinuing testosterone therapy. However, it may take some time for ovulation to resume, and overall fertility may be lower compared to pre-therapy levels.
4. Research Gaps
Limited Long-term Data:
There is a lack of long-term studies specifically assessing the fertility outcomes of transgender men after prolonged testosterone therapy. Most available data come from small studies or case reports, so generalizing findings can be challenging.
Testosterone therapy in transgender men can suppress ovarian function and potentially impact long-term fertility. While there is some potential for fertility to return after discontinuing testosterone, this is not guaranteed, and the degree of reversibility varies. Therefore, transgender men who may want to have biological children in the future should consider fertility preservation options like egg freezing before starting hormone therapy.
For more detailed information and references, please see the studies and articles linked throughout this blog.
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