Things to pay attention to after breast radiotherapy include keeping the wound hygienic and dry, eating a balanced diet and paying attention to rest. 1. Keep wound hygiene and dryness: radiotherapy is an invasive operation, so patients should keep wound hygiene and dryness after radiotherapy. Wear comfortable, breathable and loose clothing to minimize the friction on the wound. Wounds should be sterilized regularly after radiotherapy to avoid infection. 2. Balanced diet and nutrition: After radiotherapy, patients should balance the diet structure, maintain a balanced diet, eat more eggs, milk, apples, green vegetables and other foods rich in protein, vitamins, trace elements and other nutrients to improve the body’s immunity. Avoid picky eating and dieting. 3. Pay attention to rest: because the radiotherapy process will cause some damage to the patient’s body, so after the operation, patients should rest more to ensure sufficient and stable sleep time, more rest and avoid strenuous exercise. After radiotherapy, patients should also undergo regular checkups to observe the body’s recovery. If patients experience abnormal symptoms such as breast pain or pus after breast radiotherapy, they should consult a doctor in time.