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.
1 Orchitis may eventually cause the affected testicle to shrink. 2  Scrotal abscess. 3  The infected tissue fills with pus. 4  Repeated epididymitis. 5  Orchitis can lead to recurrent episodes of epididymitis. 6  Infertility.