Scabies is a mite infestation of the skin. The scabies mite, also known as the human itch or mange mite, causes intense itching, and it is contagious. When a person catches scabies, pregnant female mites dig burrows in the skin and lay eggs along the way. After three to eight days, the eggs hatch and the young mites travel up the burrows to the skin surface. There they grow to adulthood and mate, after which the females become pregnant and continue the skin infestation. Once a female mite finishes laying her eggs, she spends the rest of her 2-month life span at the deep end of her tunnel. Mite tunnels may be visible in the skin of a person who has scabies, although intense scratching often distorts their appearance.
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