The normal stool shape should be banana-shaped, dark yellow, soft and hard, when these characteristics change, you need to be alert to intestinal diseases caused by the following conditions: 1, too dry stool, is due to slow intestinal peristalsis, constipation. 2, stool is not formed, mainly due to weakness of the spleen and stomach, intestinal inflammation and other factors. The normal color of the stool is dark yellow, and once the color changes, it indicates that there is a disease in the digestive system. The color of the stool is black and gastrointestinal bleeding has a certain relationship; the color of the stool is white and bile secretion is directly related; the green color of the stool is mostly due to intestinal inflammation or imbalance of intestinal flora caused by. 4, the stool in normal circumstances with some odor, but the taste of foul-smelling stool, sour smell, also suggests that the intestinal system diseases, such as indigestion The first thing you need to do is to take a look at the results.