The symptoms of stomach pain after eating a full meal are often the following, a. gallbladder stones accompanied by cholecystitis, patients with gallstones will be prompted to discharge bile from the gallbladder into the intestine to help digestion after eating greasy food, if the stones in the gallbladder are embedded in the gallbladder duct, it will cause spasmodic contraction of the gallbladder causing severe pain, at the same time the patient will have nausea, vomiting and other symptoms, at this time, it is necessary to give scopolamine antispasmodic, After the inflammation of the patient is completely eliminated, it is recommended to remove the gallbladder surgically as soon as possible. Acute pancreatitis, most often seen in patients after heavy drinking or overeating, resulting in a large amount of pancreatic fluid secretion into the tissue space, causing digestion and absorption of their own tissues, patients will experience severe pain, treatment requires complete fasting, gastrointestinal decompression, anti-infection, acid control, rehydration and other supportive treatment, patients with mild disease can improve the pain symptoms within a short period of time.