How do head lice spread ?
Head lice do not fly, jump or swim – they simply walk from one infested person to another, by way of head to head contact, clothing etc.
Are lice dangerous?
No, aside from the annoyance factor, they do not carry disease.
Are my pets safe?
Your pet can’t contract head lice; it is strictly a human condition.
What is the life cycle of a louse?
Head lice have 3 stages: egg, nymph and adult. They survive by sucking your blood and will continue to reproduce at an alarming rate of 8-10 eggs a day. They will die after 1 full month on your head, 2 days off the head.
What about the eggs?
Nits are head lice eggs. They are hard to see and are often confused for dandruff or hair spray droplets. Nits are laid by the adult female louse and are cemented at the base of the hair shaft nearest the scalp. They are 0.8 mm by 0.3 mm, oval and are usually yellow or opaque. Nits take about 1 week to hatch (range 6-9 days). Viable eggs are located within 6 mm of the scalp.
What about Nymphs?
The egg hatches to release a nymph. The nit shell then becomes a more visible dull yellow and remains attached to the hair shaft. The nymph look like an adult head louse, but is about the size of a pinhead. Nymphs mature after three molts and become adults about 7 days after hatching.
What about Adults?
The adult louse is about the size of a sesame seed. It has 6 legs (claw like)and is opaque to gray-whitish in color. In persons with darker hair the adult louse will appear darker. Females are usually larger than males and can lay up to 10 nits a day. Adult lice can live for 30 days on a host, as they feed from your blood several times a day. Without the host they will survive for 2 days only.