Wellington Children's Hospital
The testis can twist and therefore cut off its blood supply (testicular torsion). This is most likely in teenage years but it can occur in younger children as well. This causes sudden onset of severe pain in the testis (although sometimes the pain may be mainly felt in the abdomen). This is an emergency and the patient should be sent to hospital as soon as possible and seen in hospital quickly. If a torsion is thought likely, the patient is taken to theatre and the scrotum is explored to see if the testis is twisted and, if so, to untwist it and to fix it so it cannot twist again. If a patient presents late it may be that the testis has died and therefore it may need to be removed.