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.
Sometimes, what seems to be testicle pain is caused by a problem that starts in the groin, abdomen or somewhere else â for example, kidney stones and some hernias may cause testicle pain. The cause of testicle pain can't always be identified. Causes shown here are commonly associated with this symptom.