It is not normal to have a bloated stomach after cardiac stenting, so it is important to find out the cause and, if necessary, treat it under the guidance of a physician. Cardiac stent belongs to minimally invasive surgery, stent treatment process may appear chest tightness shortness of breath, but rarely appear stomach always bloating performance, stent surgery after the appearance of such symptoms, pay attention to find the cause. Stent treatment process will use the contrast agent, after the operation, usually the patient will be asked to drink more water, drinking too much water may appear bloating symptoms, pay attention to adjust the gastrointestinal function, most of the patients will gradually return to normal. Stent treatment process need to take a lot of drugs, such as aspirin, clopidogrel, atorvastatin, etc., the drug may also cause gastrointestinal tract irritation, resulting in patients with symptoms of abdominal distension, if necessary, given to protect the mucous membrane of the drug therapy, such as omeprazole. A small number of patients should also consider the possibility of other gastrointestinal diseases, such as gastritis, enteritis, etc., the symptoms are obvious, we should promptly go to the hospital, improve the relevant examination, if necessary, can be treated with drugs. Specific medication under the guidance of a physician.