Library
MedlinePlus Health Topics
disease topic
Patient-friendly

Penis Disorders

Source: MedlinePlus Health Topics, U.S. National Library of Medicine

Last synced 8/4/2026Status: primary verified

Problems with the penis can cause pain and affect a man's sexual function and fertility. Penis disorders include: Erectile dysfunction - inability to get or keep an erection Priapism - a painful erection that does not go away Peyronie's disease - bending of the penis during an erection due to a hard lump called a plaque Balanitis - inflammation of the skin covering the head of the penis, most often in men and boys who have not been circumcised Penile cancer - a rare form of cancer, highly curable when caught early

Educational only
This information is for general education and is not medical advice. Always talk to a licensed U.S. clinician about your situation, medications, or treatment decisions.