kidney and urinary tract disorders
Scrotal Swelling
Less common causes
Less common causes include A cyst in the epididymis (spermatocele) A collection of blood in the scrotum (hematocele) Accumulation of excess fluid in the body (edema) Cancer of a testis Cancer of a testis is the most concerning cause of painless scrotal swelling. Most often swelling does not turn out to be cancer. But cancer of a testis is the most common solid cancer in men younger than 40 years and it also can occur in younger and older men, so any testicular swelling or lump should be checked by a doctor. 