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 swelling. Most conditions of the scrotum and testicles can cause swelling, including varicocele, testicular torsion, orchitis, epididymitis and hydrocele, to name a few. If you notice any swelling of your testicles or scrotum, contact your doctor to make an appointment. Other scrotal conditions. There are many conditions that can affect the scrotum.