Unshaped stool in the morning may be a normal physiological phenomenon, or it may be related to certain diseases such as acute gastroenteritis, dyspepsia, intestinal tumors and so on. 1. Physiological phenomenon: if the night is cold or dinner eating irregularly, so that the gastrointestinal dysfunction, resulting in increased intestinal peristalsis, caused by the morning stool is not shaped, is a normal phenomenon, pay attention to the night to keep warm, to improve the regularity of the diet habits can be relieved. 2. Pathological phenomena: (1) Acute gastroenteritis: patients with a long time of irregular diet or eat too spicy and greasy food, eat contaminated food by bacteria may cause acute gastroenteritis, abdominal pain, flatulence, diarrhea and other phenomena, and even daily defecation is not shaped and other symptoms. (2) Indigestion: If you eat too much food for a long time, eat irregular meals, eat indigestible food, etc., the gastric power is not enough or the digestive ability decreases, resulting in unshapely stools, frequent, and more often in the form of diarrhea. (3) Intestinal tumors: Intestinal diseases such as colon cancer, rectal cancer, intestinal polyps can lead to irregular stools, accompanied by abdominal pain, blood in stools, anemia, fatigue, emaciation and other symptoms. If the patients have long-term stool irregularity, they should go to the regular hospital in time to clarify the cause of the disease, and carry out targeted treatment and therapy under the guidance of the doctor.