Testicular torsion is the twisting of the tube, called the spermatic cord, which leads to the testicle. When this happens, little or no blood is able to flow to that area. This occurs in about one in every 4,000 males. This condition is a surgical emergency. The testicle can survive for only about six to eight hours without any blood flowing to it. After that, the tissues are damaged and the testicle no longer works.

Testicular torsion can happen at any age. However, it is most common in newborns or boys going through puberty. When testicular torsion happens during the newborn period, there is a very high chance that the testicle has already been severely damaged and may not be saved.