但是,在脐带脱落以后,肚脐就是一个死胡同了,既没有连着肠子,也没有连着血管。肚脐里面积存下来的污垢和搓澡搓出来的泥球成分是一样的,都是灰尘、代谢脱落的皮肤细胞和身体分泌的油脂所形成的混合物,用干净的棉签清理就行,不会有什么大问题。
有人觉得“抠肚脐比较用力会有尿意”,背后的原因是什
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