The causes of four or five bowel movements a day are mostly related to infectious enteritis, intestinal space-occupying lesions, and systemic diseases. 1. Infectious enteritis: infectious enteritis is often caused by viruses, bacteria, fungi, parasites. Acute infectious enteritis is often accompanied by abdominal pain, the patient has a history of unclean diet within 24 hours, defecation several times a day or even more than ten times, stools are mostly paste or watery stools, and rarely see pus and blood stools. Chronic infectious enteritis abdominal pain is not obvious, to increase the number of bowel movements, mostly see dilute stool, mucus, pus and blood. 2. Intestinal space-occupying lesions: multiple polyps in the colon, colonic villous adenoma and malignant tumors may cause incomplete obstruction, triggering an increase in the number of bowel movements per day, accompanied by significant weight loss. 3. Systemic diseases: hyperthyroidism, systemic lupus erythematosus, irritable bowel syndrome and other diseases, as well as improper use of antibiotics and antibiotic-associated small bowel colitis can also cause an increase in the number of bowel movements. Four or five times a day may also have other causes, it is recommended to go to the hospital in time to improve the relevant examination, clear the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.