The cost of radiotherapy after breast cancer breast-conserving surgery is related to the region, hospital level, radiotherapy technology and other factors, mostly around 30,000 to 50,000 yuan. Radiotherapy is currently a better treatment for breast cancer and is suitable for patients with lymph node metastasis or those who have undergone breast-conserving surgery. Generally, the radiotherapy for breast cancer is conventional radiation therapy as well as heavy ion therapy, which may cost around 30,000 to 40,000 yuan for conventional radiation therapy and usually costs around 50,000 yuan for heavy ion therapy. After radiotherapy, you need to pay attention to protecting the skin in the irradiated area and try to wear cotton soft underwear to avoid adverse stimulation. You should also pay attention to closely monitor the blood picture, if there is a drop in white blood cells and platelets, you must take timely treatment. As for the overall cost of radiotherapy after breast-conserving surgery for breast cancer, it is recommended to consult a professional doctor in detail before the radiotherapy, and formulate the course of radiotherapy according to the specific condition, and actively cooperate with the treatment to improve the quality of life.