Tamoxifen-Associated Hirsutism: An Unusual Side Effect in a 5-Year-Old Girl with McCune-Albright Syndrome

A 22-year-old with high estradiol levels is considering starting finasteride for hair loss. They have an upcoming endocrinologist appointment to discuss whether they should proceed with the treatment.

After nearly four months on finasteride, a user noticed improved hair quality but developed nipple puffiness, suggesting early signs of gynecomastia. They considered switching to other treatments like CB-03-01 or RU58841 and contemplated consulting an endocrinologist about aromatase inhibitors.

The conversation discusses using estradiol mesotherapy to replicate hormone replacement therapy results while minimizing systemic exposure. It also covers the use of Spironolactone cream, which reportedly has no systemic side effects, and the potential risks of using bicalutamide and Spironolactone in men.

Low estrogen levels may reduce the risk of side effects from finasteride, such as gynecomastia. Some users plan to start with microneedling and minoxidil before trying finasteride, while others have experienced temporary side effects from topical finasteride but continued use without persistent issues.

Estrogen injections significantly improved hair growth, particularly on the crown, after stopping finasteride. Monotherapy with estrogen led to hairline improvement, but also caused sterility and potential feminization effects.

Some users have experienced good hair regrowth with estradiol, cyproterone acetate, spironolactone, and bicalutamide, but these treatments may cause feminization and other side effects. It's advised to consult a doctor before using these treatments, as they can lower testosterone and have significant risks.