Frequent diarrhea, the causes include irritable bowel syndrome, gastroenteritis, inflammatory bowel disease, as well as drug side effects, endocrine system diseases, etc., need to treat the cause. 1. Irritable bowel syndrome: the cause of irritable bowel syndrome has not been fully clarified, and it is considered to be related to visceral hypersensitivity, heredity, emotional changes and other factors. It can be manifested as diarrhea, want to stool after meals, stool is not shaped, abdominal pain and other symptoms, should be prescribed oral probiotics, such as Lactobacillus acidophilus complex to adjust the gastrointestinal tract homeostasis, and, if necessary, also need to be anti-anxiety medication, such as citalopram, and so on. 2. Gastroenteritis: If gastroenteritis is caused by bacterial infection, gentamicin, amoxicillin, norfloxacin, metronidazole and other antibiotics can be used under the guidance of a doctor for treatment, but sensitive antibiotics should be selected, not blindly used. If it is caused by viral infection is mainly to supportive treatment, the principle is to supplement fluids, electrolytes, control diarrhea. 3. Inflammatory bowel disease: for example, Crohn’s disease and ulcerative colitis in the acute stage can be manifested as severe diarrhea, need to receive drug treatment. Use mesalazine or azathioprine, glucocorticoids such as dexamethasone to control the condition as prescribed by the doctor. 4. Endocrine diseases: such as hyperthyroidism or diabetes mellitus, can also cause frequent diarrhea, need to actively treat the underlying disease. Hyperthyroidism can be treated with antithyroid drugs, such as methimazole. Diabetes treatment, you need to take hypoglycemic drugs, such as gliquidone as well as Repaglinide and so on. 5. Drug side effects: long-term use of antibiotics such as levofloxacin can induce intestinal flora imbalance or cause intestinal infections, inducing frequent diarrhea, the need for a clear diagnosis before treatment. Oral probiotics such as Saccharomyces boulardii should also be prescribed to regulate gastrointestinal homeostasis. The use of the above medications carries certain risks, and it is recommended that the patient needs to be guided by a specialist.