there is crabs and they crawl in your pubic hairs and lay eggs.
yes, they bite anything with hair/fur. lice on the other hand bite only people.
they like to suck human blood from the (scalp) head. When they bite and suck the blood, you feel itchy.
I don't know if I'm just immune to lice, but I have dry scalp and my sister has lice, which I didn't get over the course of a month. Also, it seems logical. The dry scalp can prevent the lice to get to the scalp to such the blood.
Mommy lice
it doesnt; it just itches. you see, your hairs have little tiny vaginas on them, and the lice are supahorny. they impregnate your hairs, making them have babies and then the babies need food, so they eat the scalp, making it itchy. so they only get itchey.
Sucking lice are a type of "lice" (or more correctly, louse). They are different from some other types in that they attach and suck blood from a single site whereas biting lice bite and get a blood meal quickly and then move on to bite at another spot.
Lice live off the hair, the skin and blood from your scalp
There really are no symbols that you have lice, but what you can do is look through your hair and if you find eggs then you probably have lice.
First... vinegar does not kill lice. Use a proper lice shampoo.
Itchy scalp
Head lice can spread from the scalp to the eyebrows, eyelashes, and beard in adults, although they are more often limited to the scalp in children.
Yes, pubic lice can bite you anywhere, but they prefer the pubic area.