Scientists have recently discovered how cancer metastasizes.

Although the mechanism of cancer metastasis is not completely clear at present, many "inside stories" leading to cancer metastasis have been discovered through a lot of research. Cancer cells can produce a special enzyme, which can dissolve and destroy the surrounding tissues, such as lymphatic vessels and small blood vessels, and clear the surrounding obstacles for the "immigration" of cancer cells; The chemical composition and structure on the surface of cancer cells have their particularity, which makes the adhesion between cancer cells very low, the connection is loose, and cancer cells are easy to fall off each other. The above two points laid the foundation for the metastasis of cancer cells from the primary site to other sites. In addition, it is also found that cancer cells are in hypercoagulable state, and cancer cells transferred through blood or lymph are easy to attach to the "migration site" and continue to grow in this site. Generally speaking, poorly differentiated and highly malignant cancers have early metastasis and a wide range of metastasis.