Agache P, Makki S, Blanc D, Constans S, Michalet D
Curr Med Res Opin. 1982;7(Suppl 2):15-22.
Childhood (3 to 9 years) is a calm period of constant growth throughout which social contacts are discovered and intelligence and discretion take place. Consequently, most diseases are infectious. Microrelief was found twice shallower and skin (epidermis + dermis) twice thinner than in adults. Intervals between furrows were reduced parallel to total body surface, thus ruling out the possible existence of special shelters favouring bacterial growth. Sweating is lower, as are skin surface lipid levels, in contrast to the post-natal period, inducing dryness of skin. Although total skin stiffness in vivo was found to be identical to young adult skin, skin chapping is much more frequent. Since detergents as well as extended hot baths may reduce the stratum corneum water binding capacity, they should be used with discretion. Hence, skin care in this period of age should be based upon different criteria than in adults.
童年时期（3至9岁）是持续生长的平稳阶段，在此期间会建立社会联系，智力和判断力也会得到发展。因此，大多数疾病具有传染性。发现儿童的微地形比成人浅两倍，皮肤（表皮+真皮）比成人薄两倍。沟纹之间的间距与全身表面积平行减小，因此排除了有利于细菌生长的特殊庇护所存在的可能性。与出生后时期相比，出汗较少，皮肤表面脂质水平也较低，导致皮肤干燥。尽管发现体内皮肤的总硬度与年轻成年人的皮肤相同，但皮肤皲裂却更为频繁。由于洗涤剂以及长时间的热水浴可能会降低角质层的水结合能力，因此应谨慎使用。因此，这个年龄段的皮肤护理应基于与成人不同的标准。
