Torsion of the testicle is a medical condition that occurs when the spermatic cord, which holds the testicle in place, twists and cuts off the blood supply to the testicle. This can be a painful and serious condition that requires immediate medical attention. If left untreated, it can lead to permanent damage or even loss of the affected testicle. The symptoms of torsion include sudden and severe pain in one or both of your testicles, nausea, vomiting, abdominal pain and swelling in your scrotum. It is important to seek medical help right away if your child experiences any of these symptoms. With prompt diagnosis and treatment, torsion of the testicle can be successfully managed with minimal complications.