I found out that I have Peyronie’s disease and have been taking Propecia for some time. Is there any connection (cause and effect)?
I looked it up. One site said that Peyronie’s was reported in 6 of 4,700 patients on finasteride, which would be an incidence of 0.13% of this population. In the general population (even in those that do not take Propecia), the incidence is between 0.5 – 13%, and varies with age. That would suggest that Propecia is not a cause of this disease and perhaps (long shot) with its lower incidence with people on finasteride it even has some protective properties.
We’ve written about this before, but the connection is still unknown.