Breast cancer in the early stage usually does not appear pain phenomenon, in the middle and late stage will be long-term persistent pain. Early breast cancer can be touched in the breast, painless lumps are hard in texture, poor mobility and invasion of the skin will generally appear skin dimpling or orange peel-like changes. Pain in the middle and late stages of breast cancer may be due to the involvement of the tumor to the lymphatic vessels under the skin of the breast to appear varicose skin-like changes, when the tumor involves the milk ducts will cause the phenomenon of pain. Breast cancer may be caused by hormone action, heredity, improper diet and other factors, and usually there will be symptoms such as emaciation, fatigue, abnormal areola, etc. Surgical methods such as breast preservation surgery and total mastectomy can be adopted under the guidance of doctors to treat the disease. In daily life, one should develop a good lifestyle, adjust the rhythm of life, keep in a good mood, exercise appropriately and improve physical fitness.