### Understanding Lice and How to Identify Them Lice are tiny insects that can cause intense itching when they infest the scalp and skin. There are three forms of lice to be aware of: nits, nymphs, and adult lice. #### Nits Nits are lice eggs. They are very small, about half the size of a pinhead, and can be yellow, white, or the same color as your hair. Nits are usually found on the first 1-2 inches of the hair shaft closest to the scalp and are hard to remove. They hatch in 8 to 9 days, leaving behind clear shells that stick to the hair shaft. #### Nymphs Nymphs are baby lice that hatch from nits. They feed on blood from the scalp and grow for 9 to 12 days. Nymphs move quickly and avoid light, making them hard to spot. #### Adult Lice Adult lice are about 2 to 3 millimeters long, roughly the size of a sesame seed. They are tan or grayish-white and have six legs with claws that allow them to latch onto hair. Adult lice live for about 30 days on the scalp but die within 1 to 2 days if they fall off. ### How Lice Spread Lice spread primarily through head-to-head contact but can also transfer via hats, helmets, combs, bedding, pillows, and even earbuds. Pets do not spread head lice. ### Identifying a Lice Infestation If you or your child experience intense itching and scratching of the scalp, it may be time to check for lice. Look for bite marks, a rash, or clear shells left behind by hatched nits along the scalp or the nape of the neck. Use a fine-tooth comb on damp hair and check the comb for nits. ### What to Do If You Find Lice If you find lice, inform your child's school so they can take steps to prevent further spread. While lice are not a medical hazard and don't spread disease, it's important to address the infestation promptly to keep everyone comfortable.