The feeling of a heartbeat in the stomach may be normal, or an abdominal aortic aneurysm may have occurred, and it is recommended to go to the hospital in time for examination and surgical treatment. There is an abdominal aorta inside the stomach, and the pulsation of the abdominal aorta is the same as the heartbeat. When a patient has a feeling of heartbeat in the stomach, it may be a normal phenomenon and does not need treatment when the pulsation of the abdominal aorta is felt but there is no other physical discomfort. When abdominal aortic aneurysm occurs, the patient will feel a mass in the stomach that pulsates in the same way as the heartbeat, and most of the patients realize that there is an abnormal pulsating sensation at the heart fossa or around the umbilicus, and physical examination may reveal a pulsating mass at or above the umbilicus, whose pulsating rhythm is consistent with that of the heart, and which may be accompanied by pain and a feeling of compression. At this point, it is necessary to go to the hospital for examination to determine the location of the abdominal aortic aneurysm and surgical treatment. If the patient has a heartbeat in the stomach with no other accompanying symptoms, there is no need to seek medical attention. If it is accompanied by symptoms such as pain or pressure, it is best to go to the hospital in time for a medical checkup and treatment under the advice of the doctor in order to ensure good health.