In africa, where people have dark skin, it is difficult to make coloured tattoos as we know them.but they want to be tattooed anyway, so they have developed another technique - they make scarifications (this is not really tattooing, but it is related to tattooing). made by lifting the skin a little, and making a cut with a knife or some other sharp thing special sands or ashes were rubbed in to make raised scars in patterns on the body, it can be felt like braille lettering. These patterns often follow local traditions.