If you want to fart (exhaust) but can’t let it out, it is mainly considered to be related to gastrointestinal dysfunction, constipation, intestinal obstruction and other factors. 1. Gastrointestinal dysfunction: It can lead to insufficient gastrointestinal power, which can cause bloating, acid reflux and other symptoms. Intestinal peristalsis is too slow, and the gas in the intestines cannot be discharged smoothly. 2. Constipation: This disease can lead to symptoms such as dry stools and difficulty in defecation. The feces remain in the intestines for a long time and are decomposed and fermented by the intestinal bacteria, producing harmful gases. If the fecal matter is blocked, the patient will have the symptom that he/she wants to pass gas but cannot do so smoothly. 3. Intestinal obstruction: Diseases such as intestinal polyps and tumors can cause intestinal obstruction, leading to symptoms such as no gas and no bowel movement. It is recommended to consult a doctor as soon as possible to clarify the cause of the symptoms and follow the doctor’s instructions for treatment.