A Complete Collection of 100000 Whys
Fav十万个为什么
为什么创可贴中间有纱布？
简单的摘要：创可贴中间有纱布的原因主要是吸收渗出物、保持伤口透气以及保护伤口。
1、吸收渗出物：伤口愈合过程中会产生渗出物，纱布可以吸收这些渗出物，保持伤口周围干燥，防止细菌滋生。
2、保持伤口透气：纱布的孔隙结构允许空气流通，保持伤口透气，有助于伤口愈合。同时，透气性也能减少伤口周围皮肤的浸渍。
3、保护伤口：纱布可以隔离伤口与外界的直接接触，避免灰尘、细菌等污染物进入伤口，降低感染风险。同时，纱布也能起到一定的缓冲作用，减少伤口受到的摩擦和压力。
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