Tumors include benign tumors and malignant tumors, and cancer generally refers to malignant tumors. Cancer usually grows abnormally fast and must be treated as soon as it is detected. In addition, cancer grows infiltratively and can invade the surrounding tissues and organs. The difference between cancer and benign tumors is that cancer can metastasize, and once cancer has spread, treatment is less effective. In addition, cancer may recur after treatment, and it can consume nutrients and cause disease in the body. However, benign tumors usually grow slowly, and some of them may not grow significantly for a long time, and they are mostly swelling or outward growth. Generally, benign tumors do not metastasize. At the same time, benign tumors usually do not recur after treatment such as excision, and have no obvious effect on the body.