Your body needs some sodium to function properly because it: 1  Helps maintain the right balance of fluids in your body. 2  Helps transmit nerve impulses. 3  Influences the contraction and relaxation of muscles.
Some of the conditions that can cause a testicle lump, swelling, and/or pain include: 1  Torsion of the testicle. 2  Injury. 3  Infection. Hydrocele. 4  Varicocele. Epididymal cyst/spermatocele.  Inguinal 1  hernia. Kidney  stones.
When a man discovers that one or both of his testicles, or testes, is swollen and his scrotum has become enlarged, he might become extremely concerned. Several problems can cause testicular or scrotal swelling. Fortunately, most of these conditions can be successfully treated, especially if diagnosed early.