The abdominal aorta is the main blood and oxygen supply channel for the abdominal organs and tissues, so it will beat regularly along with the heartbeat. However, the possibility of systemic diseases such as rectal polyps, colonic ulcers, bladder cancer, etc. cannot be ruled out, as pathological changes in the local organs of the abdominal cavity can lead to ulcerative damage. The contraction and spasm of the smooth muscles of the patient will not only cause continuous blood leakage and increased oxygen demand, but also increase the amplitude of the abdominal aortic pulsation, but patients with such diseases are often accompanied by abdominal pain, loss of appetite, bloody stools, pus and other undesirable symptoms.