Swollen Penis: Foreskin, Shaft, Urethra Causes - Verywell Health
A swollen penis can occur due to many causes other than a normal erection. The abnormal swelling may be due to an allergy or caused by an infection that leads to balanitis (inflammation of the penis head), posthitis (inflammation of the foreskin), or urethritis (inflammation of the urethra). Injuries can also lead to swelling, including a penile fracture or an abnormal curve called Peyronie's disease. There are also rare but serious causes like penile cancer and paraphimosis (a medical emergency in which the foreskin becomes trapped behind the head of the penis). This article looks at nine possible causes of a swollen penis. It also describes ways to treat or manage the condition and when it is time to see a specialist known as a urologist. The Good Brigade / Getty Images Gender Definitions For the purpose of this article, "male" refers to people born with penises, and "female" refers to people born with vaginas, irres