Foamy stool is not normal, may be related to abdominal cold, indigestion and chronic enteritis and other diseases. 1. Cold abdomen: Sleeping at night and catching a cold from air conditioning, cold weather and over-eating ice-cream and other cold beverages will cause cold abdomen, which will make the intestinal tract hyperdynamic, speed up peristalsis, and produce too much gas, resulting in foamy stools. 2. Indigestion: If you don’t pay attention to your diet, often overeat, or eat hard-to-digest foods such as meat and drink a lot of alcohol, you will suffer from indigestion, which produces a lot of gas and leads to foamy stools. 3. Chronic enteritis and other diseases: chronic enteritis, intestinal polyps and other diseases will affect the digestion and absorption of the intestine. In addition, excessive bacterial reproduction in the intestines, bacteria will produce a lot of gas, will also occur foamy stool. Foamy stool may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.