All articles in Testes
Testicular cancer occurs in the testicles, two egg-shaped glands located beneath the penis. Signs of testicular cancer include a lump in the testicle, a change in how the testicle feels, aching in the lower abdomen of the groin, swelling of the scrotum, and pain in the scrotum.
Pain in one testicle can be rare and serious if not treated promptly. The pain can reside in either the right or left testicle and be associated with testicular swelling, lower abdomen pain, and burning when urinating. Sharp pain in one testicle can be caused by testicular torsion, an injury to the groin, a bacterial infection, or prostatitis.