Physical examination, ultrasound, CT scan, CT angiography, MRI angiography and other methods can be used to find out whether you have abdominal aneurysm. 1. Physical examination: if the diameter of the abdominal aneurysm is larger than 4cm, the doctor will find that there is a throbbing mass in the abdomen of the patient through detailed investigation, but this throbbing mass is not obvious in most of the obese patients. 2. Color ultrasound: it is the most common screening means, with the characteristics of non-invasive, non-radiation, reliable data and high sensitivity. 3. CT scan: it has definite value for diagnosing abdominal aneurysm, and can find very small abdominal aneurysm. 4. CT angiography: it is of great significance for the diagnosis of abdominal aneurysm, which can clarify the whole picture of abdominal aneurysm and its relationship with the surrounding organs. 5. Nuclear magnetic resonance angiography (NMR angiography): NMR angiography can be considered for patients with poor renal function, but NMR angiography is not suitable for patients with metal implants and claustrophobia. Specifically how to check, you should go to the hospital, under the guidance of the doctor to choose the appropriate method to check.