Tests and diagnosis

By Mayo Clinic Staff

Your doctor is likely to start with a physical exam, to check for enlarged lymph nodes in your groin and an enlarged testicle on the affected side. Your doctor might also do a rectal examination to check for prostate enlargement or tenderness.

After that, your doctor might recommend:

  • STI screening. A narrow swab is inserted into the end of your penis to obtain a sample of discharge from your urethra. The sample is checked in the laboratory for gonorrhea and chlamydia.
  • Urine and blood tests. Samples of your urine and blood are analyzed for abnormalities.
  • Ultrasound. This imaging test might be used to rule out testicular torsion. Ultrasound with color Doppler can determine if the blood flow to your testicles is lower than normal — indicating torsion — or higher than normal, which helps confirm the diagnosis of epididymitis.
Oct. 07, 2014

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