Reproductive System, Male: Biology of Spermatogenesis and Toxicology

A 25-year-old male experienced increased testosterone and estradiol levels after starting finasteride for hair loss, leading his doctor to suggest a testicular ultrasound as a precaution. The user questions the necessity of the ultrasound, considering it potentially excessive, while others suggest it could be a useful precaution to rule out any issues.

Dutasteride may affect testosterone levels, leading to high ferritin and iron levels, which can cause hair loss. High ferritin might be linked to past heavy drinking or hemochromatosis.

A 20-year-old male is unsure how to interpret his bloodwork results and whether he should take finasteride for hair loss. His bloodwork shows borderline high levels of albumin and testosterone, and high progesterone, but normal levels of other hormones.

A user on Finasteride for 7-8 years reported unexpectedly high testosterone levels despite expecting lower levels due to age, with discussions on the impact of SHBG and suggestions to use boron to lower SHBG. Another user noted that Dutasteride significantly increased their testosterone and free testosterone levels.

The conversation discusses the impact of finasteride on sperm, including potential side effects like decreased ejaculate volume and total sperm count. Users share experiences and concerns about fertility tests before and after starting finasteride.

Dutasteride is recommended for men on testosterone replacement therapy (TRT) with DHT-sensitive hair, as it does not interfere with TRT's anabolic effects and may improve libido and aging male symptoms. Users report varying experiences with libido when switching from finasteride to dutasteride, with some noticing improvements and others experiencing fluctuations.