Secretory breast cancer, whether it is serious or not needs to be determined by the patient’s condition. It may not be serious if the patient is young, has a small lump and no progression. It is more serious if the patient is male and has a family history of the disease or deterioration. The severity of secretory breast cancer should be based on the patient’s condition. The cause of secretory breast cancer has not been clearly defined and is considered to be related to genetic translocation. If the age of the patient with secretory breast cancer is on the young side, and the diameter of the tumor is small, and there is no deterioration, then it is not a serious condition. If the patient with secretory breast cancer is a male patient, or if there is a family history of secretory breast cancer, it may be a serious condition. It is also a serious condition if the patient shows deterioration. The severity of secretory breast cancer cannot be generalized. Patients with secretory breast cancer should go to the hospital in time to find out the details of the disease and take treatment measures under the guidance of the doctor to avoid aggravation of the disease.