Demodex Dem·o·dex (děm'ə-děks', dē'mə-)
A genus of parasitic, usually nonpathogenic mites that invade the skin and are usually found in the sebaceous glands and hair follicles of humans and animals.
In the demodex we see a tendency of the mite to assume under peculiar circumstances an elongated, worm-like form.
The family characteristics will be brought out in the discussion of the species infesting man, demodex folliculorum.
The demodex in man does not, as a rule, cause the slightest inconvenience to its host.
demodex folliculorum (fig. 62) is to be found very commonly in the hair follicles and sebaceous glands of man.
Borrel has recently suggested that demodex, may play a rle in spreading the infection in families.
Another ectozoon, placed by Mgnin and others amongst the lowest types of Arachnida, is the well-known demodex folliculorum.
The dog harbours a demodex (D. Caninus) which causes it to lose its hair.