癌症替代疗法

癌症替代疗法（Alternative cancer treatment）是指宣称可以治疗癌症、有异于现代医学通行的治疗癌症方法（英语：Treatment of cancer）的替代医学疗法，例如特殊的饮食、运动，或服用某些药物、药草，使用特定的设备，或是接受手疗等等。绝大部分癌症替代疗法都没有循证医学证据的有力支持，因此又常常被归入伪科学之列。一篇2006年的综述回顾了196项癌症替代疗法的临床试验，发现这些试验大都存在严重的方法学问题。一项回溯性研究（英语：Retrospective cohort study）表明，接受癌症替代疗法者在五年内死亡的概率比接受通行的癌症疗法者高2.5倍。 许多发展中国家的癌症病人会由于无力支付昂贵的医疗费用等因素而选择癌症替代疗法。例如，研究表明，大约40%的非洲癌症患者会使用巫术、草药疗法等方法治疗癌症。在中国，超过四分之三的癌症患者会接受中药等中医疗法作为治疗癌症的一种方式。拉丁美洲的大多数癌症病人也会接受草药、营养补充剂之类的替代疗法。而在发达国家，也有不少人在接受通行的癌症疗法的同时接受癌症替代疗法。 癌症的辅助疗法有时会与癌症替代疗法相提并论，但辅助疗法（如按摩、催眠等）的主要目的是缓解癌症带来的病痛而非治疗癌症本身，在不干扰通行癌症疗法的前提下进行一些已被证明对减缓不适有效的辅助疗法并非没有可取之处。 本节列举一些常见的癌症替代疗法，并列出相关的科学研究证据。 庸医、替代医学 魏则西事件、莆田系 Beware the cancer quack A reputable physician does not promise a cure, demand advance payment, advertise. Library of Congress. [15 August 2013].  Complementary and Alternative Medicine (CAM) for Patients. National Cancer Institute. 2015-04-10 [2019-11-13]. （原始内容存档于2022-09-21） （英语）.  Green S. 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