Does TRT cause hair loss?
TRT does not directly cause hair loss, but it can accelerate androgenetic alopecia in genetically predisposed men by raising substrate available for DHT conversion. Candidacy, modality choice, and DHT-aware adjuncts are part of the provider review. Non-predisposed men typically see no scalp-hair change.
Full answer
Testosterone replacement does not directly cause hair loss. It can, however, accelerate androgenetic alopecia in men who are genetically predisposed by increasing the substrate that is converted to dihydrotestosterone (DHT) in the scalp follicle. Men without the genetic pattern typically see no scalp-hair change on TRT. For predisposed candidates, the conversation is not whether to optimize — it is how. Modality, dose ceiling, and the option to layer scalp-targeted adjuncts (topical finasteride/minoxidil pathways) are part of the provider review. oMeds reviews hair-loss history and risk during the assessment and routes hair-conscious candidates to the appropriate adjunct pathway when indicated.
Educational. Not a substitute for individualized provider review.
- Topical hair pathway — Primary source · oMeds
- Reviewed by Dr. Laura Purdy, MD, MBA · Clinical Director, oMeds · Last reviewed 2026-05-29