Stool formation may be related to indigestion, bacterial imbalance, intestinal inflammation and other reasons. 1. Indigestion: due to indigestion, the enzyme secretion in the digestive tract is insufficient, a large amount of food accumulates in the stomach and is not fully digested and absorbed, and a larger amount of food residue is discharged from the body, so that the stools are shaped at the beginning, but will be dispersed when encountering water. 2. Bacterial dysbiosis: when the human intestinal flora is dysbiotic, the intestinal function will be disordered so that the food can not be digested and absorbed properly, which will cause undigested food in the discharged stools, leading to the situation of dispersal in the presence of water. 3. Intestinal inflammation: Inflammation of the intestinal mucosa due to various reasons, resulting in the intestinal tract can not fully absorb the water in the food, so that the stool is shaped, but it is easy to be dispersed when it meets water. When the stool is shaped and dispersed when it meets water, there may be other pathological factors. It is recommended that you go to the hospital in time to improve the examination and clarify the cause of the disease, and then give targeted treatment or therapy under the guidance of the doctor.