Breast disease is a common condition in general surgery, and a significant percentage of these visits are for breast lumps. When you find a breast lump, don’t be in a blind hurry, there are several questions to consider. First, is it a breast lump? Some female patients with breast hyperplasia have pain in the breast, and they find a breast “lump” before their menstrual period, but the so-called lump disappears after the period, which is not considered a breast lump. Secondly, if you are sure that it is a breast lump, you should see a general surgeon or breast surgeon to analyze what the lump is. There are many causes of breast lumps, which can be divided into: 1. tumor masses, such as breast fibroadenoma, breast cancer, breast sarcoma, etc. 2, inflammatory lumps, such as mastitis, breast tuberculosis, plasmacytoid mastitis, etc. 3.Other, such as fat necrosis of breast, post-traumatic hematoma of breast, cystic mass of breast hyperplasia, etc. The etiological analysis of breast lumps is divided into several steps. The first is to take a detailed medical history, including the patient’s symptoms, auxiliary tests performed, treatment methods, and family history. Family history is also important. Next, necessary tests are performed, such as ultrasonography, mammography, breast lump puncture, overflow smear if there is nipple overflow, etc. Other tests include breast MRI, PET-CT, etc. These examinations are not done all at once, but are chosen according to the patient’s specific situation, and it is up to the clinician to decide how to choose. When a patient finds a breast lump, her (or his) first reaction is “Is it breast cancer?” . How likely a breast lump is to be breast cancer is related to many factors, such as the patient’s age, menstrual status, medical history characteristics, physical examination features, etc. These factors are both relevant but not absolute. Sometimes breast cancer is found by chance, and it is important to massage your breast frequently to see if there is a lump. To sum up, what exactly should we do when we find breast lumps? The easiest way is to seek medical consultation and ask the doctor to help you analyze, diagnose and take reasonable treatment, instead of being anxious and throwing yourself at doctors with (or without) illnesses.