Always diarrhea in the early hours of the second half of the night, may be caused by colitis, chronic gastroenteritis, five more leaks and other diseases, it is recommended to actively seek medical advice to clarify the causes, give reasonable dietary regimen, drug therapy, usually can improve the symptoms. Common causes and treatments I. Common clinical diseases in Western medicine: 1. Colitis: Colitis can occur when the body is infected by pathogens such as bacteria, viruses and fungi. The characteristic manifestations of colitis can be both long-term recurrent abdominal pain and diarrhea, as well as early morning diarrhea. Because of the many types of colitis, such as ileocolitis, spastic colitis, ulcerative colitis, etc., the need for cause-specific treatment, the method varies, but for diarrhea, or the main treatment with antidiarrheal agents, commonly used drugs for montelukast, loperamide hydrochloride, etc.; 2. Chronic gastroenteritis: patients with chronic gastroenteritis often have diarrhea symptoms, and some patients may have nighttime diarrhea and/or diarrhea after meals. It is recommended to give omeprazole, ranitidine and other drugs for treatment. Second, a common clinical disease in Chinese medicine: five shifts of diarrhea. From the perspective of Chinese medicine, diarrhea always occurs in the early hours of the second half of the night and is called five shifts of diarrhea, where five shifts is the time unit, referring to 3:00 a.m. to 5:00 a.m.. Diarrhea often occurs at this time and is considered by TCM to be related to kidney yang deficiency, hyperactive liver fire, cold or unclean diet. For patients with deficient kidney yang, TCM practitioners usually apply medicines such as Sishen Wan, Pei Zi Rizhong Wan and Liu Wei Di Huang Wan for treatment. For patients with hyperactive liver fire, medications such as Gentian and Liver Pill and Zuojin Pill are prescribed. However, the specific drugs need to be selected by a professional herbalist after identifying and treating the symptoms. In addition to the need to go to the hospital in the early hours of the night, you also need to pay attention to prevent cold and keep warm when sleeping, do not eat some spicy and stimulating, cold food before going to bed, smoke, alcohol, tea, coffee also try not to touch. You can eat cereals, millet porridge, rice thinning and other foods that nourish the stomach at dinner. Ensure the right amount of exercise every day, which can help to grow Yang Qi and improve physical fitness.