First of all, let's understand the characteristics of normal stool. The nature, color and composition of stool are closely related to the food we eat. Normal stool should be brown or brown, round and soft, similar to the shape of a banana. It contains a lot of water and intestinal bacteria, which produces odor, which is the reason why feces stink. For normal people, the frequency and habit of defecation vary from person to person. Defecation 1-3 times a day. Most people choose to defecate in the morning, and the time of defecation is controlled within 5 minutes, and there is no feeling of fecal residue after defecation. Stool has always been one of the important contents of TCM consultation. The nature and color of feces can reflect the health status of human body. According to Huangdi Neijing, Lingmen are also five internal organs. It can be seen that the body governing the anus and viscera is also related to the viscera. Feces are dry, loose, thin and watery, and the color is yellow, black or porcelain white.
Normal defecation should be once a day, and the stool quality is not soft or hard, light yellow or yellow. Difficulty in defecation is often due to weak thrust or insufficient body fluids, which leads to a long stay in the body. This situation is common in Yangming's symptoms such as excess heat, qi stagnation, insufficient body fluid and yang deficiency. Spleen deficiency, hemodilution, hydronephrosis, water can not be transported normally, and it is easy to leak into the large intestine, resulting in short urination. This disease is called Wuling powder syndrome in traditional Chinese medicine. When eating black food, the stool color is black. Pathologically, it exists in upper gastrointestinal bleeding. Bleeding enters the intestine, and under the action of intestinal bacteria, black substances are formed. Jaundice can be seen in porcelain white feces.