The onset of testicular torsion is rapid and violent, with severe pain in the affected testicle and scrotum. The pain is initially confined to the scrotum, but later spreads to the lower abdomen and perineum, accompanied by vomiting, nausea or fever, and redness, swelling and pressure pain in the pubic area. As the spermatic cord is twisted, the blood vessels in the spermatic cord are blocked and the testes lack blood supply. If left untreated, the testes will suffer ischemic necrosis, darken and gradually atrophy to the point of loss of function. Surgery is a reliable and effective treatment that not only treats the testicle in which torsion occurs, but also prevents the development of the healthy side of the testicle. During surgery, the treatment should be done on a case-by-case basis. After loosening the “twisted twist”, observe the recovery of blood circulation. Within half an hour, if the blood flow is gradually restored and the black-purple testicle gradually turns red, it means that the lesion is short-lived and the function of the testicle has been restored and can be preserved. If the color of the testicle does not recover during the operation, it means that it is necrotic and should be removed.