Cancer is one of the common and frequently occurring diseases that seriously endanger human health. According to relevant statistics, on average, one person in China loses their life due to cancer in 40 seconds. Therefore, effective treatment and prevention of cancer has become a key research topic in the medical field and an urgent desire of humanity. When the stability of the internal environment of the human body and the relative balance inside and outside the body are disrupted, oncogenic factors can play a role in leading to the formation of cancer and allowing it to infiltrate, spread, and metastasize. The metastasis of cancer cells is a malignant characteristic of cancer. Without cancer metastasis, the vast majority of cancers can be cured through surgical resection. Whether cancer cells that spread through the bloodstream can ultimately form tumors depends on the body's immune function.

According to reports, some people abroad have transplanted cancer cells into healthy volunteers. After observation, the cancer cells did not form a tumor, but were quickly eliminated. It has been proven that the immune defense system of the body is closely related to the entire development process of cancer. At present, Western medicine uses methods such as radiotherapy, chemotherapy, and surgery to eliminate cancer cells, but these methods have significant side effects, short validity periods, and high recurrence rates. How to combat cancer while minimizing the side effects of chemotherapy while enhancing immunity is a new research field.