If the spermatic cord gets twisted around the blood
vessels, cutting off the testicle's blood
supply, the condition is known as testicular torsion. The problem is most likely during puberty, but can strike at any age. In most cases, only one testicle is involved, although both can be affected. If the situation isn't remedied within 24 hours, the testicle may be lost.
The problem often occurs after a sports injury sustained without an athletic supporter.