Lice on the Scalp

Lice on the scalp is a common problem among school-aged children.

Lice are small, parasitic insects that live on the scalp and hair of those infested with them. Lice feed on small amounts of blood, taken from the scalp. Lice are more common in girls than boys and usually affect kids from 3 to 12 years of age, although anyone can get lice.

Effects

Lice on the scalp usually do not cause any physical illness. Lice cause severe itching, and the bites often cause inflammation of the scalp, which can lead to skin infections. Lice are easily passed from one person to another in group settings.

Signs & Symptoms

Although small, lice can be seen with the naked eye. Those with heavy infestations may see lice on the scalp or hair. Lice eggs, or nits, are often found on the hair shaft and may resemble dandruff. Scratching the head is another sign of lice, as well as small sores on the scalp, which come from itching.

Treatment

The treatment of lice on the scalp includes the use of medicated shampoos to kill the lice. Nits must be removed from the hair to prevent re-infestation. Using a lice comb will help to remove nits and live lice from the hair shaft.

Prevention/Solution

Preventing lice re-infestations are possible by washing all bed linens in hot water or put them in the dryer for 20 minutes. Dry-clean non-machine washable clothing or stuffed toys. Soak hair brushes, combs and hair bands in rubbing alcohol or hot water. Vacuum carpets and all upholstery in the car and in the home.

References

• Harvard School of Public Health: Headlice Information
• Kids Health: Head Lice