Testicular torsion is most often seen in adolescents and often develops at night. This may be related to late night erection of the penis and increased activity of the levator muscle. The main manifestation is severe pain in the scrotum or testicles, which is not relieved by lying down or elevating the scrotum. Testicular torsion usually does not reset on its own, and even if it does, there is a high chance of recurrence in the future. Clinically, it is generally believed that testicular necrosis can occur significantly after more than six hours of torsion, therefore, timely detection is very important. How can one detect it in time? Whether at night or during the day, scrotal or testicular pain should be thought of, so you should go to the hospital for examination in time, even when it is freezing cold or late at night. This is because only timely diagnosis and early surgical repositioning and fixation can ensure that testicular function is minimally compromised. Otherwise, testicular necrosis will occur and the testicle will have to be removed. This will not only cause physical damage to the patient’s heart, but perhaps leave potential physiological effects later on. The fastest, easiest and most reliable way to confirm testicular torsion is to apply a color ultrasound scan to understand the blood circulation in the testicle. Once the diagnosis is confirmed, immediate surgical exploration should be performed: firstly, the degree of testicular torsion and testicular ischemic damage should be understood and immediately reset, local heat and lidocaine spermatic cord closure should be applied to loosen the spastic blood vessels and improve local blood circulation. Observe for at least half an hour and cut open part of the white membrane of the testis to understand its blood flow recovery. If blood flow is restored to most of the affected testis, the testis should be preserved and fixed. Otherwise, the necrotic testicle should be removed. To prevent a similar situation in the contralateral testicle, the testicle on the opposite side of the lesion is usually immobilized at the same time. Testicular torsion is not uncommon in clinical practice. As long as the adolescents can understand the above knowledge, be alert at the early stage of the disease and actively cooperate with the doctor, the tragedy of testicular removal can be completely avoided.