A tick bite refers to the act whereby a tick, a small parasitic mite of the arachnid family, pierces the skin using its serrated rostrum to feed on the blood of its host, whether human or animal. The bite is generally painless, as the tick injects an anaesthetic substance when it attaches itself, which often makes it inconspicuous and difficult to notice. The most common sites for bites are warm, moist areas of the body, such as the groin, armpits, scalp, behind the knees or behind the ears.
Unlike a simple insect bite, a tick can remain attached to the skin for several hours, or even several days, facilitating the transmission of bacteria responsible for diseases such as Lyme disease. On the skin, you may sometimes see a small, slightly raised dark spot or erythema migrans (a circular red patch spreading out from the bite). Sometimes, however, no signs are immediately visible.







