A tattoo is a form of body modification, made by inserting indelible ink into the dermis layer of the skin to change the pigment. Tattooing has been practiced for centuries in many cultures spread throughout the world.
Since the 1990s, tattoos have become a mainstream part of global and Western fashion, common among both sexes, to all economic classes, and to age groups from the later teen years to middle age. Tattooing involves the placement of pigment into the skin’s dermis, the layer of dermal tissue underlying the epidermis.
After initial injection, pigment is dispersed throughout a homogenized damaged layer down through the epidermis and upper dermis, in both of which the presence of foreign material activates the immune system’s phagocytes to engulf the pigment particles. Some tribal cultures traditionally created tattoos by cutting designs into the skin and rubbing the resulting wound with ink, ashes or other agents; some cultures continue this practice, which may be an adjunct to scarification. Some cultures create tattooed marks by hand-tapping the ink into the skin using sharpened sticks or animal bones (made like needles) with clay formed disks or, in modern times, needles. Many woman like creating tatto to make sexy her body.