Pinworms are a contagious disease caused by the parasitization of pinworms in the human intestines. Pinworms are caused by the parasitization of the human intestinal tract by worm-dwelling pinworms. Adult worms parasitize the intestinal tract, causing damage to the intestinal mucosa, and some pinworms can penetrate the intestinal tract and invade the abdominal cavity and appendix, causing an acute or subacute inflammatory response. Pinworms are contagious and can be transmitted through the digestive tract, or indirectly through infection. Patients can be infected with pinworms if they come into contact with underwear and bedding where worm egg parasites are present. Pinworms can cause itching around the anus and perineum, especially at night. Affected children may experience disturbed sleep, night terrors, and teeth grinding. When pinworms irritate the urethra, can lead to enuresis, invasion of the urethra, bladder can cause urinary tract infection, can appear frequent urination, urinary urgency and other symptoms. Therefore, once the symptoms of pinworm disease, you need to go to the regular hospital, identify the cause of the disease, and cooperate with the doctor to take relevant treatment measures.