Most of the clinical grading of mammary gland hyperplasia is based on the grading method taken by imaging performance. Mammary gland hyperplasia is generally classified into five grades from the concept of imaging grading. Grade I indicates that no significant abnormal signs are seen. Grade 2 generally indicates a benign lesion. Grade III indicates a lesion that is probably benign but requires regular follow-up. Grade IV indicates suspicious and requires a tissue biopsy. Grade V can basically be localized as malignant from imaging. Therefore, a grade IV breast enlargement requires a tissue biopsy to see if there is a possibility of malignancy. Based on the results of the tissue biopsy, a further decision will be made whether to operate or to observe the treatment for an observation period of 3-6 months. If there is a grade IV report, try to go to the hospital for a tissue biopsy to clarify the diagnosis and then further treatment.