Nausea and vomiting after eating barbecue may be caused by the barbecue itself or the ingredients are not clean, but also may be indigestion, peptic ulcer, acute pancreatitis and other gastrointestinal pathology factors. 1. physiological factors: barbecue itself belongs to a kind of greasy, high-fat food difficult to digest, if a one-time eat more or eat too fast, will make the gastrointestinal tract to increase the burden of digestion, can not be fully digested, nausea and vomiting after eating barbecue. If you eat cold drinks, beer, chili peppers and other cold and spicy stimulating food at the same time, it will stimulate the gastrointestinal tract and cause nausea and vomiting after eating barbecue. 2. Pathological factors: If the patient himself suffers from dyspepsia, peptic ulcer, inflammatory bowel disease and other diseases, the patient’s digestive and absorptive functions will be damaged to a certain extent, after eating barbecue to stimulate gastric acid secretion increases, resulting in nausea and vomiting after eating barbecue symptoms. In addition, if the ingredients used in barbecue are not clean and contaminated by pathogenic microorganisms or toxins, it may lead to acute gastroenteritis or food poisoning after consumption, causing nausea and vomiting after eating barbecue. It may also be caused by acute pancreatitis caused by high-fat foods and other causes. If the patient has long-term or recurrent nausea and vomiting after eating barbecue, it is recommended to consult a doctor in time to identify the cause of the disease and carry out targeted treatment, so as not to delay the condition.