CausesBy Mayo Clinic Staff
When you become sexually aroused, blood flows into sponge-like spaces inside your penis, expanding and stiffening it. A bent penis generally occurs when these spaces don't expand evenly. Most often, this is due to normal differences in penis anatomy, but sometimes scar tissue or another problem causes a bent penis and painful erections.
Possible underlying causes of a bent penis include:
- Normal differences in penis anatomy
- Autoimmune disorder
- Inherited fibrous tissue (collagen) abnormality
- Injury to the penis
- Peyronie's disease (a curved erection caused by one of a number of underlying conditions)
May 30, 2014
Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.
- Brant WO, et al. Peyronie's disease: Diagnosis and medical management. http://www.uptodate.com/home. Accessed March 17, 2014.
- Peyronie's disease. Urology Care Foundation. http://www.urologyhealth.org/urology/index.cfm?article=115. Accessed March 18, 2014.
- Montag S, et al. Abnormalities of penile curvature: Chordee and penile torsion. The Scientific World Journal. 2011;11:1470.
- Peyronie's disease. National Kidney and Urologic Diseases Information Clearinghouse. http://kidney.niddk.nih.gov/KUDiseases/pubs/peyronie/index.aspx. Accessed March 17, 2014.
- Tintinalli JE, et al. Tintinalli's Emergency Medicine: A Comprehensive Study Guide. 7th ed. New York, N.Y.: The McGraw-Hill Companies; 2011. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=40. Accessed March 17, 2014.