Frequent farting without defecation for three to four days may be caused by indigestion, constipation, gastrointestinal dysfunction and other reasons. 1. Indigestion: After eating a large amount of hard-to-digest food, the patient will cause the food to stay in the intestines for a long time, resulting in fermentation of the food in the intestines and stomach and the production of a large amount of gas, thus the patient may experience frequent gas but no bowel movement. 2. Constipation: When the patient is constipated due to poor digestive function and slowed down intestinal peristalsis, the patient may experience prolonged absence of defecation, difficulty in defecation, frequent farting, accompanied by blood in the stool, pain in the anus, etc. The patient can take oral lactulose as prescribed by the doctor. Oral lactulose, compound polyethylene glycol electrolyte and other auxiliary laxatives can be prescribed by the doctor. 3. Gastrointestinal dysfunction: Patients who have no bowel movement for three to four days and frequent farting may be caused by gastrointestinal dysfunction. In addition, patients may also experience abdominal fullness, abdominal pain, and difficulty in defecation. Probiotics such as Lactobacillus acidophilus complex should be used under doctor’s supervision. It is recommended that patients seek medical examination in a timely manner to clarify the cause of the disease and then carry out targeted treatment, develop good habits in life, appropriate exercise to promote intestinal peristalsis, and at the same time, patients should also do a good job of monitoring the condition, regular review.