What is a tumor(cancer)?

The tumor is the machine body some part to organize an abnormality to increase to living but form of a kind of new-born thing, usually open into a lump, past tumor.

The abnormality of so-called organization increases to living and mean that the organization of tumor increased to living to escape from general of the regulation of organization normal growth, main performance for organize structure of not not moderating of the typical model and growth and machine body, and metabolize the certain characteristic of aspect.Organization structure not typical model, namely the cell of structure and its origins organization of tumor cell have likeness, even same place, but have some characteristics, like various shapes(multiformity) of lump cell, arrange mess and unusually abruption be like etc..This circumstance isn't obvious in the tumor, more outstanding in the malignant tumor then.Grow and not moderating of the machine body sex, at burning circumstances, such as disease and organization repair...etc. under, organize the cell much has been already increased to living and waits to increase to living to certain extent and then stops growing and is subjected to the control of machine body, is mutually harmonious with machine body, such as organization harm after grow a proud flesh and scar formation organization, no longer grow after healing.But tumor once taking place, the lump cell continuously grows, majority can't stop by oneself, the machine body can not effectively control it and express a not moderating of the and machine body sex.Metabolize the certain characteristic of aspect, some materials explain, the metabolism of tumor organization a little bit not the tumor cell strengthen.Strengthen such as the protein metabolism(especially synthesize metabolism), sugar Xiao solution process strengthen, the nucleic acid metabolizes to build up.