The American Academy of Dermatology distinguishes five types of tattoos: traumatic tattoos, also called "natural tattoos", that result from injuries, especially asphalt from road injuries or pencil lead; amateur tattoos; professional tattoos, both via traditional methods and modern tattoo machines; cosmetic tattoos, also known as "permanent makeup"; and medical tattoos.
The reason pigment stays there is because the pigment particles are too big to be eaten by the white cells, so they just sit there.
While tattooing has been popular among a number of people, studies have shown that at least 50% of people with tattoos would like to remove them due to different reasons.
Today, lasers are the most common method of tattoo removal. Although there are other methods of tattoo removal include dermabrasion, which would actually "sand" away the top layer of skin through abrasive friction. Another method is excision, where the tattoo would be cut away and the skin sewn back together.
The laser is a form of light that specifically targets tattoo pigment in the skin. The tattoo pigment absorbs the light and is broken up into small fragments
Success of tattoo removal varies greatly depending on the age of the tattoo and the concentration of pigment colors.