一年染几次头发会致癌

来自曲乐医生的专业解答，快打开看看是否又获得了新的知识点～

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信用信息平台

病情分析：一般情况下染头发次数多是不会出现恶性肿瘤的。市场上的染发剂里面，含有的化学物质比较多，这些化学物质可能有致癌作用，人体长期接触会产生不良反应。如果使用频繁，可能会提高癌症的几率，所以不要经常染发，偶尔一次染发是没关系的，一年内染发2到3次就行。如果不是经常染发，就不必害怕会致癌。

曲乐

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提示：本内容仅作参考，不能代替面诊，如有不适请尽快线下就医

问题描述：今天姐姐叫我一起去染发，但我今年已经染过两次头发了，听别人说染发多了会致癌，请问一年染几次发会致癌？