Search results
Results From The WOW.Com Content Network
Pediculosis pubis (also known as "crabs" and "pubic lice") is an infestation by the pubic louse, Pthirus pubis, a wingless insect which feeds on blood and lays its eggs (nits) on mainly pubic hair. Less commonly, hair near the anus, armpit, beard, eyebrows, moustache, and eyelashes may be involved.
Crab lice found on the head or eyelashes of children may be an indication of sexual exposure or abuse. [17] Symptoms of crab louse infestation in the pubic area include itching, redness and inflammation. Crab lice are not known to transmit disease; [citation needed] however, secondary bacterial infection can occur from scratching of the skin.
Humans are hosts only to three types of sucking lice: body lice, head lice, and pubic lice. Head lice live on the human scalp and feed on human blood. They are 0.09 – 0.1 inches long, wingless ...
Pthirus is a genus of lice. There are only two extant species, and they are the sole known members of the family Pthiridae. [4] Pthirus gorillae infests gorillas, [5] and Pthirus pubis afflicts humans, and is commonly known as the crab louse or pubic louse. [6] The two species diverged some 3.3 million years ago. [7]
Pubic lice fall within the Pthirus pubis family of louse, different from head lice. Learn how you can get crabs and what to do once you see them. Pubic Lice (Crabs) Transmission and Medicated Removal
But identifying common insect bites with pictures makes it a little easier. ... While head lice and body lice are closely related subspecies, pubic lice are a separate species, he explains.
P. gorillae and P. pubis (the crab louse) are the only known species that belong to the genus Pthirus, often incorrectly spelled as Phthirus (the Greek word for louse is phthir). [3] It is suggested that it is transmitted among its hosts by social grooming, shared bedding and sexual contact. [4] All species of sucking lice feed on blood. [5]
Lice have been the subject of significant DNA research in the 2000s that led to discoveries on human evolution. The three species of sucking lice that parasitize human beings belong to two genera, Pediculus and Pthirus: head lice (Pediculus humanus capitis), body lice (Pediculus humanus humanus), and pubic lice (Pthirus pubis).