In children with scrotal enlargement, it is recommended to go to the hospital to improve the relevant examination and clarify the cause before giving radical treatment solutions for possible diseases: 1. Traffic syringomyelia. It is often caused by the scrotum and abdominal cavity traffic due to the unclosed sphincter after birth. It may manifest as a swollen scrotum, which is obvious after standing activities but disappears after lying down. The scrotum is enlarged because the fluid in the abdominal cavity flows into the scrotum through the sphincter after standing activity, but the scrotal enlargement disappears when the fluid in the scrotum returns to the abdominal cavity through the sphincter at rest. If such symptoms are present, an ultrasound examination of the inguinal region and scrotum is recommended, and if there is indeed an unclosed sphincter, the diagnosis of traffic sphingomyelia is confirmed. Treatment requires surgery to close the sphincter in order to achieve the purpose of radical cure. 2. Inguinal hernia. Inguinal hernia is manifested as an enlarged scrotum because the abdominal cavity communicates with the scrotum while the omentum and intestines in the abdominal cavity fall into the scrotum. There is usually no pain, and when touched with the hand, soft textured intestinal tube or omental tissue can be felt. It is obvious when moving and decreases after lying down. It is recommended to perform ultrasound examination, and if inguinal hernia does exist, high ligation of the hernia sac is required. 3. Testicular inflammation and epididymitis may also appear as unilateral or bilateral scrotal enlargement with obvious scrotal pain, redness and swelling. When touched by hand, the swollen testicles can be felt and pain is obvious when touched. Anti-infection treatment is needed. After the inflammation is cured, the scrotal enlargement may subside.