Blood in the stool from enterocolitis is a sign of an aggravated condition that almost never heals on its own. There are many reasons for an attack of enteritis, and with regular treatment, it can usually be completely cured. In untreated enterocolitis, deterioration may affect the digestive and absorption functions of the intestines, and a long-term lack of nutrients may gradually affect organs and tissues throughout the body and may be life-threatening in severe cases. Enterocolitis is usually caused by bacterial, viral or fungal infections, and these pathogenic bacteria can cause some damage to the intestinal mucosa and cause blood in the stool. During treatment, fluid management should be monitored at all times, and adequate hydration should be provided according to the amount of water lost to avoid serious disorders of water-electrolyte and acid-base balance in the body. In case of intestinal perforation, intestinal bleeding, intestinal obstruction and other complications of enteritis, early surgical treatment is recommended to reduce the risk of recurrence. Therefore, active treatment is recommended for the development of enterocolitis to avoid serious complications. Patients with recurrent enteritis should undergo regular colonoscopy to avoid deterioration of the disease. Paying attention to dietary hygiene and controlling risk factors such as hypertension, hyperglycemia and hyperlipidemia in daily life can effectively reduce the incidence of enterocolitis.