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.
Testicle pain is a common symptom of injury, inflammation or infection. Injury leading to inflammation is a common cause of testicle pain. Depending on the cause, pain may occur in one or both testicles and may be accompanied by scrotal pain, blood in semen, painful ejaculation, penile discharge, or fever. Testicle pain may have common causes including: