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About head lice

Last updated March 11, 2024

About head lice

Let's be careful of head lice.

Head lice tends to become prevalent regardless of filthy.
If it occurs, it is important for schools, kindergartens, nursery schools, etc. and families cooperate to deal with and eliminate them early, as they may be infected in group life or pools.

Head lice

An adult head lice
Adult (approximately 3 mm in size)

Head lice eggs
Egg (approximately 0.8 mm in size)

Eggs are mostly attached to the root of hair.
Hair casts can be removed by hand, but eggs are bound to the hair and cannot be removed unless they are stiff.

The life of the head lice

The head lice eggs become larvae in about 7 days.
It takes about 10 days from larvae to adults, and adults live for about one month, during which time they lay 5 to 8 eggs a day.
The head lice sucks blood between the larvae and adults.

The life of the head lice

What symptoms do you have if you have a head lice?

It causes suppuration due to itching in the skin of the head skin and scratches.

What if you find a head lice?

Basically, shampooing firmly every day, but it is also effective to exterminate with shampoo containing extermination drugs, extermination drugs on hair, and fine-grained combs (cogs).
※Please consult with your local pharmacy for information on how to purchase and use shampoo containing extermination drugs and extermination drugs for hair.

How can I prevent it?

  • Cut your hair as short as possible and wash it carefully every day.
  • An adult check is required. If you find an egg, let's remove it carefully in a small amount.
  • Replace pillowcases and sheets frequently, and bedding such as futons in sunlight.

What are the points to note in group life?

  • Make a habit of not using human belongings, such as hats and towels.
  • Clean clothes and lockers that you share, wash and clean them thoroughly.
  • Clean the changing room, dressing room, etc., and remove it if necessary.

Electronic flyer

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For inquiries to this page

Medical Care Bureau Health and Safety Department Health Sanitation Division

Phone: 045-671-2456

Phone: 045-671-2456

Fax: 045-641-6074

Email address: ir-seikatsueisei@city.yokohama.jp

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Page ID: 153-982-364

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