The incidence of breast cancer is gradually getting younger and on the rise. Surgery is one of the main treatments for breast cancer at present, and the scope of breast cancer surgery is relatively large, especially modified radical surgery and radical mastectomy, which leads to mobility disorders and lymphedema of the affected upper limbs. Early postoperative rehabilitation exercises are mainly: 1. 24 hours after surgery, it is recommended to do fist clenching exercise and hold loose fist. 2. 48 hours after surgery, do wrist exercise, move the wrist up and down and rotate it hard inward and outward for two weeks. 3. Day 3 it is recommended to do forearm exercise, flex and stretch the forearm up and down, the shoulder joint needs to be clenched. 4. Day 5 you can do elbow exercise, the elbow of the arm is supported by the waist, place the arm up on the opposite side Chest, then restore. 5, day 7 can do elbow holding exercise, the affected side of the limb placed on the chest, as close to the body as possible, with the healthy side of the hand upward lift, lift the chest restore. 6, day 9 can try to lift the shoulder, rotate the shoulder. 7, day 12 can do stretching exercise, arm outward 45 degrees, slowly rotate, the affected side of the limb raised, placed on the opposite shoulder, then restore.