儿童偏食不但容易导致维生素及其它营养物质的缺乏,影响全身的生长发育,而且能引起多种皮肤病的发生。 维生素A是维持人体上皮组织正常生长机能的必须物质,它可以调节皮肤的角化过程,当其缺乏时,除了能引起眼干及夜盲症外,还能引起皮脂腺和汗腺萎缩,使皮肤变得粗糙干涩,容易出现棘刺状或鸡皮疙瘩样的毛囊丘疹,毛发干枯,面部皮肤无光泽,指趾甲也可变脆变形。另外维生素A缺乏时又影响 Children partial eclipse not only easily lead to the lack of vitamins and other nutrients, affecting the body’s growth and development, but also cause a variety of skin diseases. Vitamin A is essential to maintain the normal growth of human epithelial tissue. It can regulate the process of skin keratosis. When it is deficient, it can cause eye dryness and night blindness. It can also cause the sebaceous glands and sweat glands atrophy and make the skin rough. Dry, prone to thorns or goose bumps like follicular papules, hair dry, facial skin dull, refers to the nail can also become brittle deformation. In addition, vitamin A deficiency affects