蠕形螨俗称毛囊螨,是一种永久性寄生螨。现已知约120种(包括亚种)。大多数寄生于哺乳动物如猪、马、牛等,分别称之为猪蠕形螨,马蠕形螨和牛蠕形螨等。寄生在人体的蠕形螨,一般认为仅有两种,即毛囊蠕形螨(Demodex folliculorum Simon,1842)和皮脂蠕形螨(D.brevis Akbulatova,1963)。该螨呈世界性分布,人群感染率高,多数人认为可引起以面部为主的皮肤损害。笔者于1985年 Demodex mites commonly known as hair follicle mites, is a permanent parasitic mites. About 120 species are now known (including subspecies). Most of the parasites in mammals such as pigs, horses, cattle, respectively, called Demodex pigs, horses Demodex and Demodex cattle and so on. Demodex mites parasitic on the human body, generally considered to be only two, Demodex folliculorum Simon (1842) and Demodex (D.brevis Akbulatova, 1963). The mite is worldwide distribution, the rate of population infection, most people think can cause facial skin damage. The author in 1985