1. Cancer treatment: radiotherapy is one of the important means of cancer treatment. It can control or kill cancer cells by using high-energy rays (such as X-rays or gamma rays) to destroy the DNA structure of cancer cells and stop their growth and division.
2. Tumor control: For some tumors that are not suitable for surgical resection or control by chemotherapy, radiotherapy can be used to reduce the symptoms, relieve the compression, control the growth of local tumors, and improve the quality of patients' survival.
3. Adjuvant therapy: radiotherapy can be used in combination with other treatments such as surgery and chemotherapy to improve the therapeutic effect. It can be used before or after surgery to control tumor growth, reduce tumor size and kill residual cancer cells. Medical treatment refers to the acts and services of diagnosis, treatment, prevention and rehabilitation to protect, preserve and restore human health. It encompasses medical knowledge, technology and resources designed to meet people's health needs.