what age do baby lice lay eggs
24 hours after mating, female head lice lays her eggs (nits) on the hair shaft about 1/4-inch away from the scalp, although they can be found anywhere on the scalp. Lice can live up to a month and can lay up to 10 eggs a day. An egg takes 7-10 days to hatch. A nymph is a baby louse.