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很多人上厕所时，都习惯性在马桶坐垫上铺一层卫生纸后才坐，但专家表示，这是根本是多此一举，而且更不干净呢！

据纽约大学微生物学教授菲利普指出，铺上卫生纸再坐，其实无法隔离细菌，反而让皮肤接触到更多细菌。

他透露，马桶坐垫上的细菌其实是很常见的微生物细菌，早已散布在生活中，甚至已布满在身上。

“其实多数厨房水槽比马桶坐垫还肮脏，而厕所里最该被担心不是马桶，而是粪便的细菌，它们会随着冲马桶时从空气飞散出来。”

他补充，这些细菌会散布到厕所的各个角落，包括卫生纸，因此把卫生纸垫在马桶坐垫上的做法，反而让皮肤接触更多细菌。

对此他建议，如厕前先把马桶坐垫擦拭，然后使用专用马桶坐垫纸，而冲水前应该把马桶盖盖上，避免粪便的细菌飞散而污染整个厕所。

而他也表示，公厕最脏的是门把和洗手台，因此上完厕所洗手时，一定要用清洁剂洗净。