Buy backpacks, exercise machines, athletic shoes, and more at Fogdog Sports. Crabs are a type of louse that typically infests the hair in the pubic area, where it causes intense itching. In 5 to 10 days the eggs hatch, and a few weeks later each louse is strong enough to dig its way into the follicle of a pubic hair and feed on tiny amounts of blood. Inspect your pubic area, using a magnifying glass if necessary.
Crabs are relatively immobile and easy to spot.
They're about the size of a pinhead and pale gray in color, but they'll appear darker when swollen with blood. In some cases you may feel itching and discover pubic lice not only around your genitals but also on your eyebrows, eyelashes, beard, mustache, or other body hair. In children and infants especially, crabs are often found on the eyelashes. It's possible, though, that you picked them up by using a towel, clothes, or bedding previously used by somebody with crabs. The lice can survive for up to 24 hours on clothing and other items that have been in close contact with an infested person.