The testicles are part of the male reproductive system that produces sperm and testosterone. A mass or swelling may develop in one or both testicles due to injury, birth defect, fluid collection, infection or testicular cancer.
A testicular mass may indicate one of the following problems:
The symptoms of a testicular mass depend on the underlying condition. Testicular torsions are usually painful, with fever, nausea, vomiting and frequent urination, while the other conditions may either be painless, or associated with dull pain in the abdomen or groin. Often, the affected testicle feels heavier than the other.
When you present with a testicular mass, your doctor will review your history and examine your testicles. An ultrasound, blood tests or urine tests may be ordered to confirm the diagnosis.