Diarrhea and unformed stools can be caused by cold, bacillary dysentery, enteritis, hyperthyroidism and other factors. 1. Cold: if the abdomen is cold or drink, eat cold food, can stimulate gastrointestinal peristalsis, triggering digestive disorders, diarrhea, stools not shaped. 2. Bacterial dysentery: it is an intestinal disease caused by Shigella infection, the incubation period of this disease is usually 1~4 days, after the onset of the disease, the patient will appear chills, fever, abdominal pain, diarrhea and other phenomena, the beginning of the stool for dilute watery stools, with the development of the disease, the stool can be turned into mucus, pus and blood stools. 3. Enteritis: It is caused by bacterial, viral, parasitic and other pathogen infections, in addition, improper diet, drug stimulation can also cause this disease, after the onset of the disease, the patient may appear fever, diarrhea, stools are not shaped, abdominal pain and other phenomena, and there can be a sense of urgency and heaviness. 4. Hyperthyroidism: hyperthyroidism patients due to increased secretion of thyroid hormones, resulting in the body’s metabolic function of hyperactivity, there may be an increase in gastrointestinal motility, diarrhea, stools are not shaped and other manifestations. If such symptoms occur for a long time, it is recommended to go to the hospital as soon as possible for examination, and follow the doctor’s instructions to do the relevant treatment. In addition, ulcerative colitis and other diseases can also cause diarrhea and unformed stools, it is recommended that patients go to the hospital in a timely manner, to clarify the cause of the disease, as soon as possible to receive treatment.