Generally speaking, the pre-symptoms of abdominal aneurysm mainly include abdominal distension, abdominal pain and pulsatile mass. 1. Abdominal distension and discomfort: as abdominal aneurysm will press the duodenum for a long time, due to the relatively small range of motion of duodenum, abdominal discomfort symptoms such as loss of appetite and feeling of fullness will appear when it is pressed. In serious cases, patients will have vomiting, stopping of bowel movement, nausea, exhaust or complete intestinal obstruction. 2. Abdominal pain: because the duodenum’s range of motion is small, so the abdomen in the long-term pressure of the duodenum will appear abdominal pain. 3. Pulsating mass: with the increase of abdominal aneurysm, there will be pulsating mass in the abdomen, which is a common symptom. It is recommended to go to regular hospital to do abdominal ultrasonography in time and get timely treatment under the guidance of doctor. There are other early symptoms of abdominal aneurysm, it is recommended to go to regular hospitals for consultation and standardized treatment under the guidance of professional doctors in time, so as to avoid delaying the condition.