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.
Testicular pain can have a number of different causes, some of which constitute a medical emergency. Testicle or scrotum pain may be caused by. 1  Trauma. 2  Testicular torsion (a medical emergency). 3  Inflammation of the testicle or epididymis. 4  Kidney stones. 5  Tumors.