When the nymph becomes an adult louse, it is capable of laying eggs.

Do baby lice lay eggs?

When lice start living in hair, they also start to lay eggs, or nits. Lice can survive up to 30 days on a person's head and can lay eight eggs a day. Lice attach their nits to pieces of hair, close to the scalp. If you see a small, oval blob on a strand of hair, that's probably a nit.

How long after hatching do lice lay eggs?

The nit is laid by the female near the base of the hair shaft and usually takes about 8-9 days to hatch. Viable eggs are usually located within 6 mm of the scalp. A nymph is an immature louse which matures into an adult in about 7-12 days after hatching. A nymph must feed on blood to survive.