Diarrhea every two hours may be due to improper diet, acute gastroenteritis, ulcerative colitis, irritable bowel syndrome, etc., should pay attention to rehydration, correct electrolyte disorders, but also for the cause of the treatment, such as acute gastroenteritis application ceftriaxone anti-infective, ulcerative colitis application of aminosalicylic acid preparations. 1. Improper diet: eating too much cold, spicy and stimulating food will stimulate the mucosa of the gastrointestinal tract, which may cause abnormal diarrhea every two hours, you should adjust your diet, avoid these foods, pay attention to keep warm. Generally, it can be relieved by itself. 2. Acute gastroenteritis: Dietary impurity caused by bacterial infection can cause acute gastroenteritis, acute diarrhea can occur, should apply ceftriaxone, ciprofloxacin and other antibiotics anti-infective treatment, while paying attention to fluid replacement. 3. Ulcerative colitis: autoimmune-related ulcerative colitis, often severe diarrhea, but also mucous pus and blood stools, abdominal pain symptoms, should be applied to aminosalicylic acid preparations, such as mesalazine, glucocorticoids, such as prednisone for treatment. 4. Irritable bowel syndrome: mental psychological, stress and other factors caused by functional bowel disease, can have diarrhea symptoms, can use Saccharomyces boulardii for adjuvant therapy, if necessary, need to be under the guidance of a professional doctor for psychological guidance. Diarrhea every two hours belongs to the more acute diarrhea, you can follow the doctor’s instructions to use loperamide, montelukast for diarrhea treatment, at the same time should be timely to the hospital, under the guidance of the doctor to identify the causes and treatment.