Lice Myths & Facts
Separate the facts from the myths
Knowing the truth about head lice helps you choose the best treatment for your family.
Did you know?
Quick lice facts
- ✓About half of all infested individuals don't know they have lice.
- ✓Head lice don't discriminate, we see all ages and all hair types.
- ✓Over 50% of people won't feel itching from a head lice infestation.
- ✓The food of head lice is human blood.
- ✓Only adult lice can change hosts and start a new colony.
- ✓A female head louse lives about 30 days and lays 5 to 10 eggs per day.
- ✓On average, an infestation is diagnosed 3 to 5 weeks after it starts.
- ✓Head lice can live no longer than 48 hours without human blood.
Myth vs. fact
Myth
Lice can jump or fly.
Fact
No, head lice don't jump, fly, or swim. They're good crawlers and readily move between people when hair touches hair.
Myth
Kids only get lice at school.
Fact
Children can get lice at summer camps, sleepovers, sporting events, and from family, anywhere there's a group or head-to-head contact.
Myth
Lice mean poor hygiene.
Fact
Any human with hair can get lice. A person's cleanliness has little to do with it, lice actually seem to prefer clean hair.
Myth
Lice spread disease.
Fact
There's no reliable data to suggest head lice carry or transmit disease organisms.
Myth
An itchy scalp always means lice.
Fact
Itchy scalp can be caused by climate, dandruff, or dry skin. It's a possible symptom, not a definitive sign.
Myth
You can catch lice from pets.
Fact
Lice cannot be transmitted from pets, and pets cannot get them from people.
Myth
Swimming or shampooing drowns lice.
Fact
In water, lice enter a state of suspended animation and lock onto the hair, surviving shampooing, rain, seawater, and pools.
Myth
Only children get lice.
Fact
While more common in children, parents and adults aren't immune. Any head-to-head contact carries risk.
Common Questions
Can pets like dogs and cats give you head lice?+
No. Human head lice only live on humans, and pet lice only live on their animal hosts, so dogs and cats cannot give or catch human lice. If your family has lice, focus on people, not pets, and get whole-family checks at Lice Clinics Arizona.
Lice myths & facts →Can you get lice from a swimming pool?+
It is very unlikely. Lice grip the hair tightly and do not let go underwater, and pool chlorine does not kill them or wash them loose. The real risk at a pool is head-to-head contact or sharing towels, brushes, and goggles, not the water itself.
Unexpected ways lice spread →Can lice live on pillows, furniture, and car seats?+
Only briefly. Away from a human scalp, lice starve and die within 24 to 48 hours, and nits rarely hatch off the head. So pillows, couches, and car seats are low-risk, and you do not need to tear apart your home. A quick vacuum and hot-dryer cycle is plenty.
Lice on furniture →Can you have lice without itching?+
Yes. Many people carry lice for weeks with no itch, because itching is an allergic reaction that takes time to develop and some people never react. That is why lice often spread before anyone notices. Regular family checks and a quick screening at Lice Clinics Arizona catch silent cases early.
Signs & symptoms of lice →Go home lice-free today
In most cases we have same-day appointments. Book online or call and we'll schedule a time that works for your family.