Constipation and diarrhea alternating performance refers to a period of time sometimes constipation, sometimes diarrhea. The cause may be physiological factors such as improper diet, or pathological factors such as gastrointestinal dysfunction, intestinal tuberculosis, intestinal polyps and intestinal tumors. 1. Physiological factors: if there is a large amount of cold, spicy and other stimulating food, eating irregularly, overeating and other bad dietary habits, or mental stress, anxiety, nervousness, lack of sleep, etc., may produce gastrointestinal stimulation, constipation and diarrhea alternating symptoms. 2. Pathological factors: if the patient suffers from certain digestive diseases, such as intestinal tuberculosis, irritable bowel syndrome, incomplete intestinal obstruction, intestinal polyps, intestinal tumors, etc., will cause damage to the patient’s gastrointestinal tract digestion, absorption and peristalsis, resulting in gastrointestinal tract dysfunction, the emergence of constipation and diarrhea alternately, the patient may also be accompanied by abdominal pain and bloating, nausea and vomiting, acid reflux, belching (hiccups) and other symptoms. If the patient has long-term or repeated constipation and diarrhea alternating performance, it is recommended to consult a doctor in a timely manner to identify the cause of the disease and carry out targeted treatment to avoid delaying the condition.