Lice & Pets – Myths Debunked
Lice infestations are not fun, and when it happens you are probably worrying about everyone in your family, including your pets. But do you really need to worry about your dog, cat, or other furry friend catching or spreading lice?
Let’s clear up the confusion.
Can Pets Get Head Lice?
No, pets cannot get human head lice. Head lice (Pediculus humanus capitis) are species-specific parasites, which means they only live on human scalps and feed on human blood. They are adapted to cling to the shape and structure of human hair and cannot survive on animals.
Likewise, the types of lice that affect pets like Trichodectes canis (dog lice) or Felicola subrostratus (cat lice), are not the same as the lice that affect humans and cannot be transmitted to people.
Can Pets Spread Head Lice to Humans?
Also no. Your pets do not act as “carriers” or “transmitters” of human lice. Lice cannot jump or fly, and they do not use animals as a bridge to move from one person to another. The only way you can catch head lice is through direct head-to-head contact with another infested human or from sharing personal items like hats or combs.
So rest easy, your dog did not give your child lice.
What If Lice Are Found Near a Pet’s Bedding?
If you find lice-like bugs around your pet’s bed or fur, you’re likely dealing with one of three scenarios:
- Misidentification (e.g., fleas, mites, or ticks)
- Pet-specific lice (which require different treatment)
- A rare fallen head louse that crawled off a human and can’t survive for long
Head lice can only live for about 24–48 hours away from a human scalp, so even if one ends up on the couch or near a pet, it won’t live long or cause further infestation.
Do You Need to Treat Pets During a Lice Outbreak?
No pet treatment is necessary if someone in your household has head lice. Instead, focus your efforts on checking and treating all affected humans and following a consistent lice treatment protocol over 2–3 weeks.
Welcome to the Hair Fairies blog where we share education, tips, and professional guidance on all things head lice.
