洗澡时很多人都喜欢搓背 ,认为这样才能洗掉皮肤上的污垢。其实从皮肤的生理角度来说 ,这不仅不是讲卫生 ,而且还对皮肤有害。正常情况下 ,皮肤的表面是由完全角化的角质细胞组成的角质层。这种角质层与表面的脂质膜共同构成了皮肤最表面的屏障保护层。当摩擦、牵拉、挤压、冲 Bathing, many people like to rub the back, think it can wash off the dirt on the skin. In fact, from the physiological point of view of the skin, this is not only about health, but also harmful to the skin. Under normal circumstances, the surface of the skin is composed of keratinocytes completely keratotic cells. This cuticle, along with the lipid membrane on the surface, constitutes the outermost barrier to the skin barrier. When friction, stretch, squeeze, red