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 one or both testicles are swollen, it is often distressing and can cause a great deal of discomfort. For someone who is sexually active, it is easy to assume that swollen testicles are the result of an STD; however, there are many infectious and noninfectious causes of testicular swelling. Get Tested Now.