Post-operative care for breast cancer plays a vital role in recovery. The following points are what breast cancer patients must pay attention to after surgery. First, the protection of the affected limb after surgery is something that must be paid attention to throughout life. No blood sampling, intravenous injection or blood pressure measurement on the affected limb. Do not carry heavy objects or backpacks on the affected limb; avoid prolonged drooping; elevate the limb appropriately when sleeping to avoid pressure. Avoid skin breakage and infection of the affected limb and mosquito bites; once the skin is broken, it should be treated with local disinfection and appropriate application of antibacterial agents. If the situation is serious, you should come to the hospital for consultation. Avoid wearing tight accessories, such as rings and watches, and tight clothing. For patients who participate in sports such as playing tennis, table tennis or flying, it is better to apply elastic arm sleeves, which can effectively prevent the occurrence of edema. Second, functional exercise of the affected limb after surgery: 1-2 days after surgery, practice fist clenching, finger extension and wrist flexion; 3-4 days after surgery, forearm flexion exercise; 5-7 days after surgery, the hand on the affected side touches the opposite shoulder and the same side of the ear (the affected limb can also be supported by the healthy limb); 8-10 days after surgery, practice shoulder joint elevation, extension and flexion to 90 degrees; 10 days after surgery, shoulder joint climbing wall and apparatus exercise. After getting up and moving around, do functional exercises according to the specific situation. Fourteen days after surgery, the affected limb can go around the top of the head to touch the opposite side of the ear. Attention should be paid to functional exercises of the affected limb: restrict shoulder joint activities within 7 days after surgery so as not to affect the healing of the flap; reduce the number of exercises when subcutaneous fluid accumulates. Persistent post-operative breast cancer care makes your recovery faster.