Lobular breast tumors are fibroepithelial tumors that can be classified as benign, junctional, or malignant. The etiology of the disease is still unclear. In addition to race, age and geographical factors, it may also be related to hygiene habits, childbearing and lactation, and endocrine changes. It is usually characterized by localized painless lumps in the breast, changes in breast shape and skin surface, and is most common in middle-aged women, multiparous and breastfeeding. Lobular tumors are mainly treated by surgery, and the scope of excision is different for different types of lobular tumors. Benign and junctional lobular tumors are mainly treated by mass enlargement resection. For malignant lobular tumors, total mastectomy is needed, and some of them also need postoperative chemotherapy and radiotherapy. Patients with lobular tumor of breast are recommended to go to the hospital for timely examination and standardized treatment under the guidance of doctors.