Three characteristics of malignant tumors

Malignant tumor is the body in the carcinogenic factors under the action of gene changes, the body cell proliferation is not controlled, the formation of a tumor. Tumor cells can continue to grow through the capsule, invasion of surrounding tissues and organs, showing distant metastasis. Second, malignant tumors can metastasize to distant organs, which can cause functional failure of organs at the metastatic site; third, if malignant tumors do not receive standardized treatment, they are likely to cause death of patients, and malignant tumors may show recurrence and metastasis again after treatment.