DefinitionTesticle pain is discomfort in one or bothtesticles. The pain sometimes radiates to the lower abdomen. Alternative NamesPain - testicleConsiderationsThe testicles sit inside the scrotum. They are very sensitive. Even a minor injury can cause pain or discomfort to the testicles. Sudden, severe testicle pain, however, requires immediate medical care.If a young man has abdominal pain, the scrotum should always be carefully examined. Abdominal pain may occur before testicle pain in some conditions, including testicular torsion. This is a twisting of the testicles that can cut off the blood supply and cause tissue to die. Testicular torsion is an emergency that needs to be treated within hours.Testicular cancer is usually painless. But any testicle lump should be evaluated by your doc