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What causes swelling of the testicles?

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Quick Answer

Testicular swelling can have many causes, including testicular torsion, orchitis, and hydrocele. Swollen testicles are noticeable when a localized enlargement of the testicles or a more generalized enlargement of the scrotum is present, according to MedicineNet.com.

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Full Answer

Testicular torsion occurs when the spermatic cord twists, reducing blood flow to the testicles. The reduced blood flow results in severe pain and swelling in the testicles, states Mayo Clinic. Testicular torsion occurs after sleep, vigorous activity or a minor injury to the testicle. Surgery is needed to correct testicular torsion and prevent it from reoccurring.

Orchitis is the inflammation of one or both testicles. It can result from a progression of epididymitis or a spread of bacteria through the blood to the testicles, notes WebMD. Orchitis causes one or both of the testicles to be tender and appear red and swollen, MedicineNet.com states. Medical treatment for orchitis may include the use of anti-inflammatory drugs, such as ibuprofen, for pain and antibiotic therapy to deal with the infection and prevent its spread.

A hydrocele is a collection of watery fluid in one or both testicles that causes scrotal or testicular swelling. Hydroceles occur due to injury or inflammation within the scrotum, notes MedicineNet.com. Other major causes of swollen testicles may include tumors, hernia, infections and anatomical abnormalities.

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