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