Bioimmunotherapy, as the fourth generation of tumor treatment technology, successfully makes up for the shortcomings of the three traditional therapies, but it is also different from the traditional therapies, and successfully leads the cancer treatment to a more efficient development path. Surgery Surgery is one of the important methods of cancer treatment and is also the first choice for early stage cancer treatment, which means total or partial removal of cancer tissues. Advantage: The effect is direct and rapid, and early stage patients have the possibility of complete cure after surgery. Disadvantages: There are certain risks, especially for site-sensitive cancers, and surgery is more risky. In addition, since surgery is a local therapy, only palliative local excision can be done for cancer patients who have metastasized, and because surgery is more traumatic to the body, it will lower the immunity of patients and make them prone to a series of complications. At present, there are two main types of cancer surgery in clinical practice: radical surgery and palliative surgery. It is important to mention that whatever type of surgery will cause damage to human body functions and require a longer period of repair. Combined biological therapy is mostly used after surgery for patients with intermediate and advanced stages, so as to consolidate the treatment effect, improve the immunity of patients, fully improve the quality of life after surgery and prolong the survival period. Chemotherapy Chemotherapy is a treatment mode that uses chemical drugs to kill tumor cells, inhibit the growth and reproduction of tumor cells and promote the differentiation of tumor cells. Advantage: Chemotherapy is a systemic treatment that has therapeutic effect on primary foci, metastases and subclinical metastases. Disadvantage: Chemotherapy is a kind of treatment that kills normal cells and immune (resistance) cells while killing tumor cells, so it is a kind of treatment that “kills both stones and rocks”. It is especially important to note that the blind use of chemotherapy for patients with mid- to late-stage tumors or weak bodies will not only lead to rapid deterioration of the disease, but also accelerate the death of the patient. Radiation therapy Radiation therapy is a common means of treating malignant tumors, i.e. the treatment method of destroying cancerous tissues with X-rays, gamma rays and electron rays to make them shrink. Advantages: Radiation therapy has a relatively direct effect on killing and inhibiting cancer cells, and when used properly, patients can tolerate it and the effect is more ideal. Disadvantages: Like surgery, radiation therapy is a local therapy, and there are serious shortcomings in radiation therapy, such as the “enemy is not separated from me”, i.e. cancer cells are killed together with normal cells, and the effective dose and poisonous dose are very close to each other, and there are relatively large toxic side effects. Bioimmunotherapy Bioimmunotherapy does not directly target cancer, but uses the body’s own anti-cancer cells to destroy cancer cells by enhancing the immunity and regulating the immune vitality of the body, which simply means using the patient’s own cells to treat cancer. It uses immune cells collected from the patient’s whole body to be cultured and expanded in vitro and then transfused back into the patient’s body to stimulate and enhance the body’s own immune function for the purpose of treating tumors. Biological therapy can stimulate the immune protection and enhance the ability of the immune system to inhibit or stop the growth, metastasis and recurrence of tumors. It can eliminate the residual tiny metastatic lesions, prevent the spread of cancer cells and recurrence, reverse the resistance of tumor cells to monoclonal antibodies and radiotherapy drugs, improve the immunity of the body, and achieve the effect of maximizing the survival of patients.