The blood vessels of patients with abdominal aortic aneurysm are relatively fragile, so they should avoid spicy stimulation, greasy food, high fat and high cholesterol diet, the details are analyzed as follows: 1. Spicy stimulation, greasy food: Eating spicy stimulation, greasy food may stimulate the digestive tract, affecting the gastrointestinal tract to the absorption of the active ingredients of the drugs, thus reducing the therapeutic effect. Such as chili peppers, garlic, onions, peppers and peppercorns. 2. High fat, high cholesterol food: one of the main causes of abdominal aortic aneurysm is atherosclerosis, and the cause of atherosclerosis is mostly related to eating high fat, high cholesterol food. Therefore, it is not recommended for abdominal aortic aneurysm patients to eat high-fat and high-cholesterol foods, such as fatty meat, fat intestines, egg yolks, sea fish, etc., which will lead to further aggravation of the disease. Patients with abdominal aortic aneurysm should communicate more with their doctors on dietary management.