This worried me as I have read that most people who complain about their penis size, find that it shrinks on Finasteride. I believe from what I read that some people get an increased testosterone level when they take Finasteride. I don’t really understand the complaints that some men’s penises have gotten smaller as mine got bigger. I am now 35 year old so changes in my overall hormone balance have been stable.
You are correct that it does seem some people complain that their penis is getting smaller on Finaseride, although there is nothing to support this claim in the medical literature. Your complaint is again unique. I can’t explain either complaint.