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Pediculosis is a quite widespread disease which is manifested by an invasion of lice that make damage to the patient’s skin and hair.

The first symptoms of pediculosis often appear after a few weeks since the incubation period of the disease is 30 days or even more. Let’s examine the basic signs of pediculosis.


Skin itching

Itching is not only one of the major symptoms of the disease, but also has a very pronounced character due to the peculiarities of the saliva of lice. Itching appears regardless of the particular type of pediculosis. However, each separate type has its own specific manifestations of itching.

For example, head pediculosis is accompanied by itching of the head, in particular, of the area behind the ears. Frequently itching is not very severe, that’s why patients may only complain of a slight discomfort which is caused by the bites.
Meanwhile, a clothes pediculosis or pediculosis corporis is accompanied by almost unbearable itching. The itching is of diffused nature, i.e. it is spread all over the body. Due to the strengthening of itching at night, the patients often experience problems with sleep.

In case of the pubic pediculosis, itching occurs not only in the area of anus and genital organs, but also in the eyelids area. The intensity of itching is moderate and in some cases the patient gets used to it and often pays no attention to it.


Rash is usually observed in patients after a few days after they were bitten by the parasites.

Head pediculosis is accompanied by the appearance of red spots along the periphery of the scalp. In case of pediculosis corporis, the pigmentation is almost universal. Pubic pediculosis manifests itself in the form of blue spots. The size of such spots may vary from 3 millimeters to 1 centimeter concentrating predominantly in the hips and abdomen area. The appearance of these spots is a consequence of the skin staining due to the products of hemoglobin disintegration which is released after the bites of parasites.


Scratches result from itching and long duration of the disease Scratches appear in the areas that are exposed to the bites of the lice. Very often such places are covered with purulent crusts.


Hair nits are the undisputable evidence showing that in a person suffers from pediculosis. They appear only in case of head pediculosis and pediculosis corporis. They resemble small silvery bubbles attached to the hair with 2-3 millimeters in size. It should be noted that the nits may be either alive or dead (the dead ones are usually distinguished by a dull color).