擤鼻涕是通過鼻子強烈呼氣來排出鼻腔黏液(通稱鼻涕)的行為。現代人類社會中一般配合面紙手絹包裹或擦除粘液以保持衛生。在某些文化中,在公共場所擤鼻涕可能被視為違背禮儀

擤鼻涕可能用來緩解鼻塞流鼻涕。2000年的一項研究表示,擤鼻涕會在鼻腔產生高度壓力,並可能將鼻腔粘液推入鼻竇而使感冒惡化。[1]

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