Breast fibroadenomas are common benign breast lumps in women and are usually not causally related to breast cancer and basically do not turn into breast cancer. If a fibroadenoma is diagnosed, the treatment depends on the size, location and growth rate of the fibroadenoma. It is generally recommended that fibroadenomas under 1cm can be followed up for a long time without surgery. However, some patients have higher psychological pressure, and larger lumps are easy to reach and affect the aesthetics, causing some psychological pressure to the patients. If the patient’s tolerance is relatively poor, surgical removal of breast fibroadenoma is recommended. Adolescent women are affected by unique hormones, and the breast gland can experience both hyperplasia and recovery. If the hyperplasia is not recovered in time, it can form breast hyperplasia, which most women will experience after entering puberty, and most of them are just a state, not a disease. However, breast hyperplasia can present with premenstrual pain, and some patients can palpate granularity, nodules or lumps in the breast. Breast enlargement is not breast cancer, and there is usually no necessary causal link with breast cancer.