A Genetic Test for Androgenetic Alopecia: Polymorphisms in the Androgen Receptor Gene Provide a Genetic Screening Test for Androgenetic Alopecia and Earlier Medical Intervention

Balding scalps have more androgen receptors, leading to increased TGF-beta, which causes blood vessel loss and hair follicle miniaturization. Blocking androgen signaling and TGF-beta may help prevent hair loss.

A 25-year-old male experienced significant hair loss due to telogen effluvium and androgenetic alopecia. He began using finasteride, minoxidil, and vitamins, seeing some regrowth but remains worried about hair density.

Androgenic alopecia (AGA) might have evolved to reduce prostate cancer risk by increasing UV exposure to the scalp, but this theory is debated. Treatments like minoxidil and finasteride are used for AGA, though the exact causes and evolutionary reasons for hair loss are unclear.

The user experienced male pattern baldness starting at 18, tried finasteride with no success, and switched to dutasteride, which halted hair loss. Minoxidil had no effect for them, while their brother, who didn't use AR inhibitors, maintained a juvenile hairline and successfully grew a beard with minoxidil, highlighting the unpredictable nature of genetics in hair loss and treatment response.

The conversation discusses hair loss treatments, focusing on the use of topical minoxidil, microneedling, finasteride, and dutasteride, while debating the role of testosterone and DHT in hair loss. It also touches on the potential liver health impacts of these treatments and the genetic sensitivity of hair follicles to androgens.

Genetic variations influence how people respond to dutasteride for hair loss, with some benefiting more from finasteride. Dutasteride is effective for most, but genetic differences may cause it to be less effective for some.