Fibroadenoma of the breast is the most common benign breast tumor in women, with the highest incidence among benign breast tumors. It occurs in young women with high ovarian function and metabolic disorders, during menstruation and in women of any age, but mostly between 18 and 30 years old, and rarely before menarche or after menopause. Fibroadenomas are mostly round, oval or lobulated in shape, and some are nodular in shape. They are well-defined, mobile, and have a smooth surface. The tumor diameter is usually 1-3 cm, >5 cm is called giant fibroadenoma, and the tumor is single or multiple. If the tumor increases significantly in a short period of time, or if there are palpable enlarged lymph nodes, the possibility of malignancy should be considered. Most of them can be diagnosed by ultrasound or mammogram. The only effective treatment for fibroadenoma of the breast is surgical excision with a good prognosis. For young women, a curved incision at the areola margin and an axillary incision can be used to achieve a reasonable incision and aesthetic appearance, depending on the situation. In the case of multiple tumors, it is generally not mandatory to remove all of them, but the larger ones can be removed first, and the smaller ones can be temporarily observed. Pregnancy, for hormonal reasons, tends to increase the size of static fibroadenoma, so it should be removed before pregnancy; for patients >35 years old, they should be removed as soon as possible to exclude the possibility of malignancy; post-pregnancy and post-menopausal fibroadenomas should also be removed surgically. For patients with masses <3cm, minimally invasive McMurdo spinotomy is one of the cosmetic procedures advocated in recent years, and multiple tumors can be removed under a small incision of 3mm under local anesthesia.