Radiotherapy is a treatment method that uses radiation to irradiate locally to kill tumor cells and then absorbed by the body, which is slightly less painful compared with chemotherapy. Radiotherapy is used only in the late stage of endometrial cancer. Generally, it is administered intracavernally, that is, in the vagina, which is prone to local skin atrophy and ulceration and causes local damage to normal cells, but less damage to the gastrointestinal tract and less nausea and vomiting than chemotherapy. It is not necessary to do any treatment if it is not serious. During radiotherapy and chemotherapy, Chinese herbal medicine can be used to improve the therapeutic effect and enhance immunity, as well as to reduce side effects. During radiotherapy, it is recommended to have regular blood tests to see if the patient’s body can withstand the damage of radiotherapy. If the blood count is too low, not only the effect of radiotherapy will be poor, but also the chance of infection will be increased, which will affect the effect of radiotherapy.