Definition A collective term for a variety of malignant tumors. Their cells grow and divide faster than normal cells and often metastasize to other tissues. Cancer: also known as malignant neoplasm in medical terminology and rock in Chinese medicine, is a disease caused by a malfunction in the mechanism that controls cell growth and proliferation. In addition to uncontrolled growth, cancer cells can also locally invade surrounding normal tissues and even metastasize to other parts of the body through the circulatory system or lymphatic system. Causes According to medical doctors, the causes of cancer are as follows: the body under the action of environmental pollution, chemical pollution (chemical toxins), ionizing radiation, free radicals toxins, microorganisms (bacteria, fungi, viruses, etc.) and their metabolic toxins, genetic characteristics, endocrine imbalance, immune dysfunction, etc., leading to cancerous transformation of normal cells, which is often manifested as the formation of local lumps due to the abnormal proliferation of local cells in tissues. It is often manifested as abnormal cell proliferation in local tissues and the formation of localized lumps. Cancer is a major type of disease caused by the mutation of normal cells of the body in multiple causes, stages and times. Cancer cells are characterized by unrestricted and endless proliferation, which consumes a lot of nutrients in the patient’s body; they release many kinds of toxins, which cause a series of symptoms in the human body; and they can be transferred to all parts of the body to grow and multiply, resulting in weight loss, weakness, anemia, loss of appetite, fever, and serious damage to the function of the organs, etc. In contrast, there are benign tumors, which are often manifested by abnormal proliferation of local tissues. In contrast, there are benign tumors, which are easy to be removed, generally do not metastasize, do not recur, and have only squeezing and blocking effects on organs and tissues. However, cancers (malignant tumors) can also destroy the structure and function of tissues and organs, cause necrosis and bleeding combined with infections, and the patients will eventually die due to the failure of organ functions. Symptoms (1) Unexplained emaciation, weakness, irregular pain in the epigastrium, decreased appetite, especially anorexia of meat food. (2) Non-pregnant and breast-feeding women with running nipples or the ability to squeeze out fluid.