The indications need to be grasped in the process of thermotherapy, and not all patients are suitable for thermotherapy.1. Brain tumor itself grows in the brain, and the tumor grows to a certain degree may compress the brain tissue, because the skull outside the brain is a bony tissue, which can not be expanded; the tumor is too big and leads to the elevation of intracranial pressure, and once the intracranial pressure is too high, it will lead to the edema of the brain tissue and the occurrence of cerebral hernia, which is very dangerous; the use of thermotherapy in this kind of patients can cause the aggravation of brain edema and increase the risk of cerebral hernia; 2. Cerebral edema will be aggravated and the risk of cerebral hernia will be increased, so it is not suitable for heat therapy; 2, patients with bleeding, some tumors grow to a certain degree and invade the surrounding blood vessels, which may cause bleeding symptoms, especially in gastrointestinal tract tumors, and gastrointestinal bleeding is very common; if this kind of patients use heat therapy, it may aggravate the bleeding; because the heat will accelerate the blood circulation, and once the blood circulation is increased, it will aggravate the bleeding, and it may cause There are some patients with abnormal coagulation function, such as patients with low platelet and patients with coagulation factor deficiency, and the risk of bleeding will be increased when using heat therapy. Therefore, the above patients should try to avoid the use of heat therapy. Besides these patients, other patients are relatively safe to use thermotherapy, which can be used alone or in combination with radiotherapy, chemotherapy or immunotherapy for better results. At the same time, thermotherapy can also reduce the toxic side effects produced by radiotherapy or chemotherapy, so the combination of thermotherapy and radiotherapy and chemotherapy is a very promising treatment method, which is also very effective in controlling tumors. There are many means of tumor treatment, mainly including surgery, radiotherapy, chemotherapy, immunotherapy, and thermotherapy is also the most important means of tumor treatment. Because of its non-toxicity, harmlessness and low side effects, thermotherapy is called green therapy, and it has good efficacy and mild side effects in tumor treatment, so it is also widely used.