Lifespan of a Louse

microscope image of adult louse, lice and nits

If you think you or your children have been exposed to head lice, it is best to act as quickly as possible. The faster you discover the lice or nits (eggs), the faster we can help you eradicate them.

Head lice can only be spread through head to head contact with an infested person. The lice will crawl, they cannot jump or fly, from one scalp to another and begin to feed and reproduce on the new scalp.

It is helpful to know that it takes 8-12 days for nits to develop and hatch. However, if you do find nits in your child’s hair, there is no way to know how long they have been there or in what stage of development they are. If nits are visible that means they have been there for a least a few days as they are too small to be seen before then.  

You cannot have nits without having had a live bug in the hair, so if you do find nits you want to make sure to do a thorough inspection of the head for live lice as well. When the nit hatches, a nymph or baby louse emerges onto the scalp, and about 10 days later it is mature enough to begin laying eggs of its own. A mature louse can lay from 6 to 10 eggs per day and live up to 30 days. This means that each louse can lay anywhere from 180 to 300 eggs in its lifetime. This process will continue until all the lice and nits are successfully removed from the hair.

Head lice and nits will not go away on their own if left untreated. If the hair on the scalp is not successfully eradicated of all lice and nits, the case will continue to get worse. LiceDoctors offers safe, effective and chemical free protocols with professionals to help free you from these little, but irksome pests. If you find lice, give LiceDoctors a call at 713-966-6116 and an experienced professional will come to you and leave you lice-free!