肿瘤,这一人类健康的大敌,目前已成为医学科研攻关的主要目标。但直到今日,人们对肿瘤的流行病病因学还没有完全弄清楚,以致在诊断和防治中还没有特效方法,处在这样一个认识的发展阶段中,提出某些假说是有助于肿瘤研究的。本文试对肿瘤研究中假说建立的辩证法做一探讨。首先,在肿瘤的病因学研究方面,人们提出了两种假说:基因突变学说和基因调控学说。这两种假说是如何提出的呢? Cancer, the enemy of human health, has now become the main goal of medical research. However, until today, the etiology of the epidemiology of cancer has not been fully understood, so that there are no specific methods for diagnosis and prevention. In the stage of development of this understanding, some hypotheses are proposed to help tumor research. . This article attempts to discuss the dialectic method used in the hypothesis of tumor research. First, in terms of the etiology of tumors, two hypotheses have been proposed: genetic mutation theory and gene regulation theory. How are these two hypotheses proposed?