婴儿湿疹俗称“奶癣”,常在出生后不久发生。由于婴儿皮肤角质层比较薄、末端毛细血管比较密、含水和氯化物比较多,因此容易发生炎性反应。满一周岁的婴儿的皮肤结构才开始接近于成年人。因此,婴儿湿疹一般的在一周岁以后会自然痊愈。也有少数儿童患湿疹持续3～4岁或更久的。引起湿疹的原因有二个:一个是机体对各种刺激的敏感性增高,这可能同大脑皮层调节作用有关。另一个是存 Baby eczema, commonly known as “milk cream,” often occurs shortly after birth. Due to the relatively thin stratum corneum of the baby’s skin, dense capillaries at the distal end, and more water and chloride, it is prone to inflammatory reactions. The skin structure of a one-year-old baby begins to approach adults. Therefore, infantile eczema naturally recovers after one year of age. There are also a small number of children suffering from eczema for 3 to 4 years or more. There are two causes of eczema: One is the increased sensitivity of the body to various stimuli, which may be related to the regulation of the cerebral cortex. Another is