Lower stomach pain, mainly consider cholecystitis, appendicitis, gastroenteritis and other conditions. 1. Cholecystitis: mostly related to overeating, drinking, eating greasy food, through ultrasound examination can be found in patients with gallbladder stones, cholecystitis, usually patients will present abdominal pain, nausea, vomiting and other discomforts. 2. Appendicitis: the appendix is located in the middle and outer 1/3 of the intersection of the umbilicus and the right anterior superior iliac spine, often presenting metastatic pain in the right lower abdomen, and there will be hidden pain in the lower stomach, accompanied by nausea, vomiting and other discomforts. 3. Gastroenteritis: mostly related to patients eating unclean, indigestible food, at this time the patient intestinal wall edema, gastrointestinal dysfunction, nausea, vomiting, diarrhea, abdominal pain and other discomforts. In addition, the lower stomach pain may also have other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.