What Is Crabs Disease?

By james
Reviewed: Dr. Gromatzky
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3. Symptoms

Symptoms begin approximately five days after coming into contact with the insects and usually begin with intense itching in the infected area. A louse’s saliva contains proteins unrecognized by the human body, and the itching sensation is a result of the immune system launching an attack against them.

A person with crabs also may notice reddish pimples where lice have fed. The pimples then change to 0.2 to 3.0-centimeter black or bluish-gray spots. The immune system may further respond by causing lymph nodes in the area to swell and the body to become feverish. The person may feel lethargic or irritable.

Crabs Disease

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