An itchy scalp is the main symptom of lice. The itchiness is caused by an allergic reaction to the saliva that the insect injects in the scalp to feed on blood. However, some people with lice do not have itching. An inspection of the head is the best way to find lice or nits. As they’re generally less than 10 to 20 live lice on the head, it is extremely important to conduct a thorough inspection.
Good lighting is important in order to see lice moving because they run from light. A fine comb and, if possible, a magnifying glass, are perfect tools. Wet the hair to facilitate parting it with the fine comb.
To inspect the head:
Repeat inspection of the head as follows:
Do not forget to wash your hands after each inspection.
Last update: July 12, 2017 1:15 PM
The information on this website by no means replaces the advice of a health professional. If you have questions regarding your health, contact Info-Santé 811 or see a health professional.