The appearance of hard lumps in the breast is abnormal, indicating the presence of breast disease, and should be diagnosed and treated as soon as possible. The breast is mainly composed of breast glands, fat tissue, ligaments, ducts and other tissues, and there is no lump. The presence of hard lumps indicates the occurrence of breast disease. Common lesions include mastitis, fibroma, breast hyperplasia, breast cancer, etc. There are both benign and malignant lesions, which require patients to seek early medical treatment and diagnose the lesions through history taking, physical examination, and a combination of ultrasound, molybdenum target, pathology and other examination items. For patients with benign lesions, symptomatic treatment is the mainstay. The lesions are cured through oral medication to improve symptoms or surgical removal of the lesion. For malignant lesions, early surgery is needed to remove the lesion and clear the surrounding lymph nodes through radical surgery. Combined with radiotherapy, endocrine therapy, targeted drug therapy and other adjuvant treatment measures, in order to stabilize the condition. Therefore, once the breast abnormality is detected, it is necessary to consult a doctor in time for appropriate treatment.