If you think it's an emergency, call 911.Thinking about suicide? Call or text 988.
Overview
Scar tissue forms under the skin.
It can stabilize over time.
When to get medical care
Call 911Sudden pain with a cracking sound and swelling during sex (possible penile fracture).
Get care todayNot usually urgent.
See a doctor soonNew curve or lump.
Causes
Caused by scar tissue, often after minor injury.
OwieClear has pages on 1 condition that can cause curve or lump in the penis. Each shows how soon to get care.
Common causes
- Peyronie's disease (curved penis)See a doctor if it doesn't get better
Scar tissue inside the penis that causes a curve, lump, or pain with erections.
What you can do at home
- Don't force sex if painful.
Medicines
Injections, devices, or surgery.
At the doctor
Diagnosed by exam.
Questions you may be asked
- Curve
- Pain
The exam
A genital exam.
Tests
- Ultrasound
Prevention
Protect from injury.
- Be careful during sex
Check your symptoms
Most symptoms have more than one possible cause. The symptom checker looks at all of your symptoms together, plus your age, and shows how soon to get care.
Sources
Last updated 2026-11-13.