If you notice that the child often scratches his head, complains of constant itching, there are scratches on the scalp; the child developed nervousness and anxiety, this is a reason to examine the head. Inspection is best done in bright light and with a magnifying glass. You can find lice bites on the scalp, they look like small red dots. When scratching or getting an infection, the bites can become inflamed and look like pustules or sores covered with a yellow crust. On close examination, light yellow lice may be found on the scalp or in the hair. The detected parasites may differ from each other, it depends on the stage of development of the individual. On the hair, you can find small cocoons of light color tightly attached to them, which are very difficult to remove from the hair.