Red nematodes in the stool are considered to be parasitic infections such as roundworms and can be treated with medication. Red nematodes in stool can be caused by eating unhygienic food or eating raw food. Improper diet can trigger intestinal infections and the presence of parasites in the intestines. It is recommended to go to the hospital for the appropriate stool routine examination, if it is clear that the red nematodes are parasites, you can use the intestinal worm clean, levamisole, mebendazole and other drugs under the guidance of the doctor to expel the parasites. Patients should pay attention to hygienic diet, do not eat uncooked, raw food, develop a good habit of washing hands before and after meals, pay attention to personal hygiene, cut nails and clean the dirt in the nail crevice. If accompanied by abdominal pain, diarrhea and other symptoms, should promptly go to the hospital, clear cause, under the guidance of the doctor symptomatic treatment.