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==Life cycle== The eggs of the crab louse are laid usually on the coarse hairs of the [[Sex organ|genital]] and [[wikt:perianal|perianal]] regions of the human body. The female lays about three eggs a day. The eggs take 6β8 days to hatch, and there are three [[nymph (biology)|nymphal]] stages which together take 10β17 days before the adult develops, making a total life cycle from egg to adult of 16β25 days. Adults live for up to 30 days.<ref name="service"/> Crab lice feed exclusively on blood, and take a blood meal 4β5 times daily. Outside the host they can survive for 24β48 hours. Crab lice are transmitted from person to person most commonly via [[Human sexual activity|sexual contact]], although [[Fomite|fomites]] (bedding, clothing) may play a minor role in their transmission.<ref name="cdc3">{{Cite web|url=https://www.cdc.gov/parasites/lice/pubic/biology.html|title=Pubic "crab" lice: biology|author=CDC (Centers for Disease Control and Prevention)|website=www.cdc.gov|language=en-us|access-date=2017-12-04|date=2017-05-02}}{{PD-notice}}</ref>
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