this post was submitted on 03 Jan 2026
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[–] auraithx@lemmy.dbzer0.com 6 points 6 days ago* (last edited 6 days ago) (2 children)

Excess testosterone will be converted into estrogen by the body, for anyone else confused as to why we all didn’t have boobs.

Testosterone itself (in the body) suppresses boob growth.

[–] Monument@lemmy.sdf.org 2 points 6 days ago (1 children)

Ooh. That makes sense. I read that on a side effects list and thought it was interesting, but didn’t realize that was the mechanism of action.

I would suppose if someone grows breast tissue from using testosterone, then they should use less. (Which kind of means my original comment is a bit circular, or rather, the surgery would perhaps be unnecessary if the correct amounts/dosage were used.)

[–] auraithx@lemmy.dbzer0.com 2 points 6 days ago* (last edited 6 days ago)

Aye, but if the dose of T is not too high (a person can need a certain level to feel healthy), their doctor can prescribe a Aromatase inhibitor instead (the enzyme which converts T -> E)

However, if they leave it too long (1yr+) and the tissue becomes fibrotic; then surgery is the only way to remove it. So your hypothetical has no doubt happened.

[–] Anivia@feddit.org 1 points 6 days ago* (last edited 6 days ago)

~~Excess~~ testosterone will be converted into estrogen by the body

FTFY

Aromatization of testosterone happens in everyone, regardless if they have "excess" testosterone or not