Body lice have three forms: the egg (also called a nit), the nymph, and the adult. Nits are lice eggs, which are oval and usually yellow to white in color. Body lice nits are generally easily found in the seams of an infested person's clothing, particularly around the waistline and under armpits. They occasionally also may be attached to body hair. A nymph is an immature louse that hatches from the nit. It looks like an adult body louse, but is smaller. The adult body louse is tan to greyish-white, about the size of a sesame seed, and with 6 legs.