Patients with axillary bulge, the common causes are mainly the following: a. Obese patients can have a large amount of fatty tissue accumulation in bilateral axillae, manifesting as local obvious bulge, at this time can be examined by local ultrasound, if no abnormal tumor lesions are found, patients can be advised to closely observe, strengthen physical exercise, through reducing the intake of high-calorie, high-fat food, promote the faster fatty tissue in the body Consumption can reduce the symptoms of bilateral axillary protrusion. Young female patients will have bilateral axillary parametrium, which is accompanied by normal mammary gland tissue, and will be accompanied by local swelling, painful symptoms and even local milk accumulation during pregnancy, which can induce acute mastitis or even local cancer. Therefore, patients are often advised to have their parametrium removed as soon as possible to avoid serious local complications that may endanger their lives.