Abdominal pain after all kinds of tests still can not be found may be eating spicy hot pot and other dietary factors, but also may be irritable bowel syndrome, stomach cramps and other diseases caused by. 1. Dietary factors: such as overeating, eating spicy hot pot, fried chicken, beer, ice cream, strong tea, coffee and other irritating foods, stimulate the gastrointestinal mucosa and increase the burden on the gastrointestinal tract, causing abdominal pain, diarrhea, nausea, loss of appetite and other symptoms. 2. Irritable bowel syndrome (IBS): a functional gastrointestinal disorder caused by the interaction of biological, psychological and social factors, manifested by chronic or recurrent gastrointestinal symptoms, causing abdominal discomfort, abdominal pain, constipation and diarrhea alternately. There is no organic lesion, only gastrointestinal dysfunction, so no abnormality can be detected during examination. 3. Gastroparesis: It can be caused by irregular diet, heredity, mental psychology and other factors, resulting in twitching of the stomach muscles, presenting a state of strong contraction, nausea, vomiting, epigastric pain and radiating pain, cold sweating, pallor and other symptoms. Abdominal pain after doing a variety of tests or can not be found, there are other reasons, it is recommended to promptly seek medical attention in order to clarify the diagnosis, under the guidance of the doctor for targeted treatment.