Head Lice Infestation- Causes, Risks and Symptoms

What are head lice? Head lice are small, wingless, blood-sucking insects. They live in the hair on the head and feed off the blood from the scalp, A louse is about the size of a seed. A nit is about the size of a small flake of dandruff. Read what are the causes, risks and symptoms of head lice infestation.