Head lice are tiny parasites that feed on human blood and live on a person’s head, close to the scalp. They commonly transmit among young children.
This article explores whether head lice can affect babies, the life stages of lice, and how to prevent lice.
Anyone can get head lice. However, in the U.S., lice are
- other group settings, such as playgrounds and slumber parties
Additionally, a 2016 study found that having a sibling with lice increases a child’s risk of getting lice. A child may get lice after interacting with a classmate. The lice may then transmit to the child’s siblings or other family members in the household. Therefore, if there are more children in the family, a child is
This means that if a baby or toddler has older siblings or spends time with other children in group settings, they may also get lice. Therefore, parents with older children with lice should also inspect their babies and toddlers for lice.
The life cycle of a head louse has three stages: nit, nymph, and adult.
Nits are lice eggs and their shell casing. Female lice can lay
Therefore, nits may be difficult to see. People may confuse them for scabs, dandruff, or hairspray droplets.
Nymphs are immature lice that hatch from nits
It takes nymphs
Adult lice have
Female lice lay their first egg 1–2 days after mating. Lice need to feed on blood several times daily to survive. They may live around 32–35 days, but they can only survive up to 2 days if they fall off a person’s head.
After they mate and lay eggs, adult lice die, and a new cycle begins.
Parents and caregivers may take the
- Refraining from sharing brushes, combs, or other personal items such as towels, hair bands, barrettes, and bows.
- Advising children to avoid direct head-to-head contact during playtime.
- Disinfecting any brushes and combs someone with lice has used with at least 130°F (54.4°C) water for 5–10 minutes.
- Refraining from lying on couches, pillows, beds, carpets, or stuffed toys that have been in contact with someone with head lice.
- Washing all clothes, bedsheets, and other washable items a person with lice has used in the 2 days before lice treatment on a hot laundry and dryer cycle.
- Vacuuming beds, carpets, mats, and furniture where someone with lice has sat or laid down.
- Drycleaning pillows, stuffed toys, and other nonwashable items a person with lice has used in the 2 days before lice treatment. Alternatively, tightly seal these items in a plastic bag for 2 weeks.
- Refraining from spraying fumigants — they are unnecessary for managing head lice and can cause harm to people.
A person should also check the hair and scalp of everyone in the household after someone has lice treatment for
Head lice are common among young children and their families.
Babies may get lice from contact with their siblings or others living in the same household or other children they spend time with in different group settings. They may also get lice by sharing items such as pillows, stuffed toys, and brushes.
Parents and caregivers should check for signs of lice in their baby’s hair and can take steps to prevent lice, such as encouraging children to avoid head-to-head contact.
A healthcare professional can help people identify lice and advise which lice treatment may work best for them.