Surgery is not recommended for fibroadenomas of the breast for a number of reasons, including lack of symptoms and small adenomas, but surgery is required for larger adenomas and for cancerous tumors. Breast fibroadenoma is a benign tumor of the breast that occurs due to an abnormal increase in the sensitivity of the fibroblasts in the lobules to estrogen. Generally, there are no obvious symptoms except for breast lumps. The lump grows slowly and has a texture that feels like the elasticity of a hard rubber ball. Therefore, if the tumor is small and asymptomatic, it can be followed up regularly for observation and not operated for the time being. However, it should be noted that if the tumor is large or symptoms such as swelling and pain occur, surgical excision treatment can be carried out, which requires the removal of the tumor and its surrounding envelope together. It is recommended that patients with breast fibroadenoma should consult a regular hospital and decide whether surgery is needed under the guidance of a doctor.