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why don t black people get lice

Head lice have difficulty gripping onto coily hair. As a result, Black people with coily hair and others with this hair type may be less susceptible to head lice.

Head lice are small insects that live in human hair. They are not dangerous to health, but they can cause some problems, such as itching and difficulty sleeping. Head lice are also contagious and can easily spread among people in the same household or school.

Some people are less susceptible than others to getting head lice. This article discusses how head lice affect African Americans with coily hair.

Do African American people get head lice?

a black mother styles her daughter's hair in buns
Junior Asiama/500px/Getty Images

African American people can still get head lice. However, the Centers for Disease Control and Prevention (CDC)Trusted Source state that African American people get head lice much less frequently than other people. The reason for this may be that most head lice in the United States have claws that more easily grip onto uncoiled hair.

Prevalence in African American people

According to a 2018 article in the British Journal of Family Medicine, head lice affect African American people less commonly compared with other people. The researchers suggest that this is due to the shape of the claws in most head lice and the width and shape of the hair shaft in coiled hair.

The hair shaft in coily hair has an oval cross-section, whereas in other hair types, the shaft tends to be circular. Head lice find it easier to grip onto circular hair shafts.

In addition, the researchers note that the use of hair oils could also play a part. For example, petroleum jelly makes hair smoother and less brittle, which is harder for head lice to grip onto. ResearchTrusted Source has shown that African American women are likely to use more hair products than other women and to use them from a younger age.

Head lice seem to be more common in Caucasian, Hispanic, and Asian American people than in African American people. For example, fewer than 0.5% of African American schoolchildren experience head lice compared with about 10% of schoolchildren of other races.

Research from 2012Trusted Source suggests that some head lice have adapted to living in coily hair. The researchers found head lice in four African countries: Senegal, Burundi, Rwanda, and Ethiopia.

Signs of head lice in coily hair

Signs and symptoms of head lice include:

  • presence of insects that are black or gray and about 2–3 millimeters (mm)Trusted Source long with six clawed legs
  • an itching or tickling sensation in the hair
  • feeling or seeing movement in the hair, including crawling but not hopping or flying
  • trouble sleeping, as head lice are most active when it is dark
  • sores on the head from scratching, which may lead to an infection

People can also look for signs of head lice eggs. The empty egg casings may be easier to see on dark hair than the lice, as they usually appear white. Eggs are usually within 4 mm of the scalp and are about 0.8 mm by 0.3 mmTrusted Source in size.

How to check for lice

People can check for lice in the following areas:

  • the scalp and crown of the head
  • around and behind the ears
  • the neckline at the back of the head

How to treat head lice in coily hair

The steps for getting rid of head lice are generally the same, regardless of hair type.

People with hair extensions, wigs, or hairpieces will need to remove them before treatment. They can then find a space with good lighting and get rid of head lice by:

  • wetting the hair and dividing it into sections
  • applying a lice treatment or home remedy, such as coconut oilTrusted Source
  • moving a louse comb through the hair in sections to remove head lice and their eggs
  • rinsing out any excess product from the hair using a shower head or running tap
  • checking anyone else in the house for head lice to prevent further spreading

A person should check the hair again 8–12 hours after the treatment and avoid rewashing it until at least 2 days afterward. It is important to continue to comb through the hair once a day with the comb to remove any dead lice.

People may need to see a healthcare professional if home remedies are not working.

The American Academy of Dermatology Association recommends that African American people follow additional hair care tips, which include:

  • washing the hair once a week or every other week
  • using conditioner with every hair wash, making sure to coat the ends of the hair
  • using a hot oil treatment twice monthly
  • applying a heat-protecting product to wet hair before styling it
  • sticking with a ceramic or iron comb for pressing hair
  • ensuring that braids, cornrows, or weaves are not too tight

Summary

Head lice are less common in African American people than in other people, which is likely due to the head lice struggling to grip onto coily hair. However, African American people can still get head lice and should continue checking for the problem.

The treatment for head lice is the same for people with any type of hair. It is important to check everyone in the household because head lice can spread among individuals. A person should speak with a doctor if treatments for head lice are not working.

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