Indigestion may be manifested by epigastric fullness and discomfort, pain in the upper and middle abdomen with burning sensation, nausea, acid reflux, constipation, diarrhea, or headache and other discomforts. Indigestion is caused by poor gastrointestinal function, consumption of greasy food, overeating, etc., and will be accompanied by epigastric fullness, epigastric pain with burning sensation, nausea, acid reflux, constipation, diarrhea, and headache, anxiety, lack of concentration, pain in the lower abdomen, urinary frequency and other uncomfortable symptoms. If the above symptoms are not relieved, or accompanied by other symptoms, you should go to the hospital in a timely manner to improve the relevant examinations, to identify the causes and then give targeted treatment, so as not to delay the condition.