The urinary system is usually infected with parasites, such as Ehrlichia hominis, Mannheimer’s cestode, and fecal nematodes, which can be detected through excrement. It is recommended to promptly seek medical examination to improve urine routine, urine culture, stool routine and other tests to identify the worms and identify the cause for symptomatic treatment. 1. Ehrlichia hominis: It may be due to the larvae entering the digestive tract through the mouth, or the upstream infection via the urinary system due to the body swimming in sewage, fishing for aquatic products or mistakenly drinking sewage. It often presents with abdominal pain and diarrhea, but can also be without obvious signs and symptoms. Invasion of the urinary system can cause fever, lumbar pain, hematuria, urinary frequency, urinary urgency or painful urination and other symptoms of urinary system infection. It is recommended to pay attention to personal hygiene and avoid drinking sewage or contact with sewage and decaying plants, etc. It can be treated with drugs such as albendazole and mebendazole under the guidance of physicians. 2. Mann’s diaphragm tapeworm: It can manifest as mild symptoms such as discomfort in the upper middle abdomen, vague pain, nausea and vomiting. It is recommended not to eat raw or undercooked meat and not to drink raw water, etc. in life. Adult worm infection can be expelled with praziquantel and albendazole under the guidance of physicians. The lymphatic larvae are mainly removed by surgery, and local injection of alcohol and procaine can also be used to kill the worms. 3. Fecal roundworms: they can manifest as diarrhea, pneumonia, hemorrhage, meningitis and sepsis, and even death due to severe organ failure. It is recommended to treat with albendazole and ivermectin under the guidance of physicians, and to strengthen the management of feces and water sources, as well as to do personal protection. In life, one should try to avoid eating contaminated food and drinking sewage to prevent the organism from being infected, producing discomfort or inducing disease.