The need for hospitalization for mammary gland hyperplasia surgery depends on the size of the hyperplasia, and depends on a comprehensive assessment of the surgery, whether the surgery is suspected of malignancy, and if there is malignancy, hospitalization is definitely required because there is a possibility of a second further treatment, including major surgery, and now many hospitals can do simple mammary gland hyperplasia surgery on an outpatient basis, without hospitalization. Most mammary hyperplasia is a physiological disease that does not necessarily require treatment. The need for hospitalization for this type of surgery for mastocytosis is determined by age, the presence of other accompanying symptoms, and a preoperative evaluation for malignancy. If the lesion is large and widespread, or even requires subcutaneous glandular excision, anesthesia is required, which is generally not possible in an outpatient setting, so hospitalization is required. In cases where malignancy is indicated, such as when calcification is obvious, or when preoperative puncture reveals suspicion of malignancy, such patients also need to be hospitalized.