What insects burrow into the scalp?

The primary insect that burrows into the scalp is the human head louse (Pediculus humanus capitis). These tiny parasitic insects feed on human blood and can cause intense itching and irritation. While they do not burrow deeply into the skin, they lay their eggs (nits) close to the scalp, which can sometimes be mistaken for burrowing. Other parasites, like certain types of mites, can also affect the scalp but are less common.