No, pubic lice are ectoparasites; they live on the outside of the body.
When the flow of blood under that particular part is minimal then you might get such a feeling.A2:You might actually have something crawling under your skin. It wouldn't be a bad idea to take your skin to a doctor. There are a number of parasites that might be responsible.
The medical term for the occupation and dwelling of parasites on the external skin surface is "ectoparasitism". Ectoparasites are organisms that live on the surface of a host's body, such as fleas, lice, and ticks.
more than the smartest person can count under a microscope
A bot fly is one of several families of hairy flies whose larvae live as parasites within the bodies of mammals, such as the Desert Woodrat.
parasites and dead skin
Lice do not generally live in animal fur. I'm 99% sure that parasites that live on guinea pigs will not transfer to human skin.
Sharks don't live in symbiosis with other organisms. They don't need to. However the remora, or suckerfish, often attach themselves to a sharks skin. They keep the skin clean while removing debris and eating parasites on the sharks skin.
parasites and dead skin
No, they just bite you.
No, cacti are not parasites. They don't live off other creatures.
The parasite lays an egg that enters the stomach or intestine. It grows in that organ, until it starts sucking up the host's nutrients. This can make the host weak, which makes the immune system become sick.