Abdominal pain, vomiting, and inability to pass stool are mainly caused by gastrointestinal dysfunction, gastrointestinal flu, intestinal obstruction, and inflammation of the stomach. You need to go to the hospital in time to find the cause, and you can improve the examination of colonoscopy, abdominal CT, etc., and then carry out treatment for the cause. Common causes and treatments 1, gastrointestinal dysfunction: mainly due to emotional tension, indigestion, imbalance of intestinal flora, etc., causing abdominal pain, vomiting, constipation and other symptoms. Usually you can use anticholinergic drugs to relieve spasm and pain, and use drugs such as chlorpromazine for sedation, and also take oral intestinal probiotics to regulate the disordered flora. Patients also need to maintain a relaxed mood, avoid excessive tension, anxiety, so as not to aggravate the symptoms; 2, gastrointestinal flu: mainly due to infection with bacteria or viruses leading to intestinal spasm, which causes pain, can also be accompanied by vomiting and relatively serious constipation. Usually, under the guidance of a professional physician, drugs such as pivetonium bromide tablets can be used to relieve intestinal spasms, and drugs such as nimesulide and ribavirin can be used as appropriate for symptomatic treatment; 3. When inflammation exists in the gastrointestinal tract, it can stimulate the gastrointestinal mucosa with symptoms such as abdominal pain and vomiting, while taking drugs to neutralize stomach acid can also lead to constipation. Patients can adjust the drugs to protect the gastric mucosa under the advice of the doctor, but also with the abdominal heat compress and other ways to promote gastrointestinal peristalsis, improve the symptoms of discomfort. Patients need to consume sufficient amount of water in daily life, and can eat more fruits with high potassium content such as cantaloupe and apple to balance electrolytes and avoid water and electrolyte imbalance caused by vomiting. It is also necessary to exercise moderately to promote intestinal peristalsis and relieve constipation.