癌的发生是非常复杂、漫长的恶化过程,体内每个细胞受体内外各种不良因素刺激损伤,需数十年才会癌变。这种变化首先是由基因发生变异而引起的。在癌变过程中,主要由抗癌基因和癌基因两方面决定。正常状况下,两种基因互相制约,如同中医所说“阴阳平衡”,癌变不会发生。抗癌基因阻止正常细胞异常增殖,保持细胞正常的功能,而癌基因平时处在“关闭”状态。当 The occurrence of cancer is a very complicated and long process of deterioration. Various adverse factors inside and outside the body of each cell in the body irritate the injury and it takes several decades to become cancerous. This change was first caused by mutations in the genes. In the process of carcinogenesis, it is mainly determined by both anticancer genes and oncogenes. Under normal conditions, the two genes constrain each other. As Chinese medicine says, “yin and yang balance”, canceration will not occur. Anti-cancer genes prevent abnormal proliferation of normal cells and maintain normal cell functions, while oncogenes are usually in the “off” state. when