and how did it get aaaall the way to you? curious? ancestry can help you find out. because that thing has a story, and it's still being written. see for yourself at ancestry. what causes a curve down there? is it peyronie's disease? will it get worse? how common is it? who can i talk to? can this be treated? stop typing. start talking to a specialized urologist. because it could be peyronie's disease, or pd. it's a medical condition where there is a curve in the erection, caused by a formation of scar tissue. and an estimated 1 in 10 men may have it. but pd can be treated even without surgery. say goodbye to searching online. find a specialized urologist who can diagnose pd and build a treatment plan with you.