See a doctor for swelling in the testicles. All testicular swelling must be diagnosed by a physician to determine the differences between a cyst, cancerous growth, hydrocele or infection in the testicles. A testicular cysts, also called a spermatocele or epididymal cyst, is typically a painless, fluid-filled, noncancerous
Consider getting a second opinion if you are not satisfied with your physician’s diagnosis and treatment. Although most epidermoid and pilar cysts do not require treatment from a physician, if you do seek medical advice and are not satisfied with the results seek a second opinion.