The standard way for tattoo removal is the non-invasive removal of tattoo pigments using Q-switched lasers. Q-switched lasers are used to...

http://thescienceexplorer.com/brain-and-body/tattoos-science-behind-permanent-body-art

A common question that is asked, “Does getting a tattoo hurt?” Most people will say yes, however, this is a complex question to answer....

http://www.historyoftattoos.net/#.YDaGsaIZQVo.link