Itching on the scalp, especially around the ears and the back of the neck
Small red bumps or irritation on the scalp or neck
Seeing lice moving on the scalp or clothing
Finding nits (lice eggs) attached to hair shafts close to the scalp
Nits that are firmly stuck to hair and do not slide off like dandruff
Checking with a fine-toothed lice comb and finding live lice or nits in the comb
Symptoms that persist despite regular hair washing
Increased scratching in children or frequent complaints of an itchy scalp
Noticing lice or nits on hats, helmets, collars, or bedding
Household members or close contacts reporting itching or lice/nits