breed

Q. How long does it take for lice eggs to hatch on a dog?

A. There are two kinds of lice that can be found on dogs, chewing lice and biting lice. The chewing louse trichodectes canis has a life cycle of eggs hatching in approximately 1-2 weeks and then living for approx. 30 days. The biting louse Linognathus setosus has the same life cycle.

Answered By
DR. ANDREA M. BRODIE, DVM

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