Do Lice Fart?

Their hatchling nymphs need to escape from the nit (egg case). While still locked in, they suck in air and release gas or flatus, creating “fart pressure,” to pop the cap off the nit. This allows for their escape to the hair and scalp.

What are the black things in head lice?

The nits are egg-cases, attached to the hairs. They are oval in shape. The empty egg cases (left behind after the baby louse has hatched) are white, and easier to spot.

Does lice look like black dots?

Although lice and their nits are small, you can see them with the naked eye. They can be white, brown, or dark gray. You're more likely to find them in the hair at the back of your neck or behind your ears. The nits are round or oval specks that are tightly stuck to hairs near the scalp.