Fibroadenoma of the breast is currently thought to be induced by hormonal disharmony and high estrogen levels in the body and overstimulation. Fibroadenoma of the breast is the most common benign tumor among breast diseases, which can occur at any age after puberty, mostly between 20-30 years old; its occurrence is related to estrogen stimulation, so it rarely occurs in women before menstruation or after menopause, and is a benign tumor of the breast, but a few can become malignant. The main clinical manifestation of breast fibroadenoma is breast swelling, and in most cases breast lumps are the only symptom of this disease. In most cases, breast lumps are the only symptom of the disease. The lumps of breast fibroadenoma are mostly unintentionally felt by patients or detected by physical examination, and are usually not accompanied by pain and do not change with the menstrual quality cycle. In a few cases, breast fibroadenoma is accompanied by breast enlargement, and in this case, there may be symptoms such as premenstrual breast swelling and discomfort.