Testicle pain which occur in one or both testicles, or originate from elsewhere in the abdomen or groin, but the pain is felt in one or both testicles.
Cause for testicle pain
Hydrocele: Sac is filled with fluid which forms around a testicle, it can occur for any age. Most of the time it is painless and the only sign may be a swollen scrotum or heaviness in the scrotum. Symptoms can be a bulge in the scrotum that may cause pain with coughing or a burning sensation in the scrotum or testicles.
Testicular torsion: It can occur when the testicle twists within the scrotum. This leads to a decrease in blood flow to the testicle as the spermatic cord twists, cutting off the blood supply to the testicle. The reduced blood flow causes sudden and often severe pain and swelling. Symptoms of testicular torsion include acute onset or intermittent testicular pain, scrotal swelling and redness.
Epididymitis: It can be caused by inflammation of the coiled tube (epididymis) located at the back of the testicle which stores and carries sperm. Most often it is caused by a bacterial infection including sexually transmitted infections. Symptoms can include a swollen and red scrotum, testicle pain, penile discharge and painful ejaculation.
Testicular cancer: Most common symptom is a lump or swelling in one of the testicles. Other symptoms also include ache or pain in the testicles.
for any pain you should consult your doctor for the diagnosis.