肿瘤是什么?它可能是生物进化过程中的一种生命现象;是人衰老过程中一种环境压力自然选择的结果;也是人生命过程中以免疫为主导的宿主因素从盛到衰的结果。其实,自肿瘤进入人们视野的那一刻,人类对肿瘤研究从来没有停止过。目前,国内外诸多研究已表明,肿瘤的发生发展与基因突变存在必然联系,正 What is a tumor? It may be a biological phenomenon in the process of biological evolution; it is the result of a natural selection of environmental pressure during the process of human aging; it is also the result of the immune-dominant host factor in life process from prosperity to decline. In fact, since the tumor into people’s vision at the moment, human cancer research has never stopped before. At present, many studies at home and abroad have shown that there is a necessary relationship between the occurrence and development of tumors and gene mutation.