Tiny, wingless insects that subsist on human blood. Humans can be infested by three distinct species: Pediculus humanus capitis (commonly known as head lice), Pediculus humanus corporis (referred to as body lice), and Phthirus pubis (also called crab or pubic lice). All of these species possess flattened bodies and can measure up to 3 mm in width.
Head lice inhabit the scalp and are transmitted through direct contact. (It’s important to note that the lice are more inclined towards clean hair, and their propagation isn’t linked to inadequate hygiene.) Their minuscule eggs, known as nits, are affixed to hairs near the scalp. Bites from head lice lead to significant itching.
Body lice reside on clothing in close proximity to the skin, where they also deposit eggs. They have the potential to transmit diseases such as epidemic typhus and relapsing fever.
Pubic lice, also known as crab lice, inhabit the pubic hair or occasionally can be found in areas like armpits, beards, or eyelashes. Typically, these lice are transmitted through sexual contact.
Diverse treatments can be administered to eliminate both lice and their eggs. Furthermore, lice present on garments, bedding, and items like hairbrushes can be eradicated by laundering them in high-temperature water.