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Twisted testicle (testicular torsion)

Also called: Testicular torsion, twisted testicle

The testicle twists and loses blood supply, causing sudden severe testicle pain and swelling. Surgery within hours saves the testicle.

TimeSurgery within 6 hours is best
AgeMostly 12 to 18

Overview

Pain may wake a boy from sleep.

The testicle twists and cuts off its blood supply.

Surgery within 6 hours usually saves it.

Symptoms

Common signs:

  • Sudden severe testicle pain
  • Swelling
  • Nausea and vomiting

Less common

  • Belly pain

When to get medical care

Call 911Call 911 now for: sudden severe testicle pain, swelling, nausea and vomiting.
Get care todayMilder symptoms that could be early signs.
See a doctor soonQuestions about lowering your risk.

Causes

Twisting.

Does it spread or run in families?

  • It isn't contagious. You can't catch it from someone else.

Who is more likely to get it

  • Teens

Diagnosis

This is diagnosed in the emergency room or hospital.

The exam

A physical exam.

Tests

Tests, if needed:

  • Ultrasound:

Treatment

Emergency care is needed. While waiting for help:

Self-care

  • Go to the ER now

Prevention

To lower your risk or prevent problems:

  • Surgery fixes both sides

Which doctor treats this

  • Emergency doctors treat it first, in the ER.
  • They may send you to a urologist (urinary tract doctor).

Back to school, work, or sports

  • Recovery time varies. Ask your care team when you can drive, lift, work, and exercise.

Children, pregnancy, and older adults

  • Teen boys: Most common.

For caregivers

  • Go to visits when you can and take notes.
  • Keep a list of medicines, allergies, and doctors in one place.
  • Learn the warning signs that need fast care.
  • Learn CPR. Many hospitals and the Red Cross offer classes.
  • Take breaks and ask for help. Caregivers need care too.

Outlook

Fast surgery saves the testicle.

Getting ready for your visit

Bring a list of your symptoms and medicines.

What to bring

  • A list of your medicines and supplements
  • Notes on when symptoms started and what makes them better or worse

Questions to ask

  • What follow-up care do I need?
  • How can I prevent this from happening again?

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Twisted testicle (testicular torsion)

Sources

Last updated 2026-11-12.