The word tattoo, or tattow in the 18th century, is a loanword from the Samoan word tatau, meaning "to strike". The Oxford English Dictionary gives the etymology of tattoo as "In 18th c. tattaow, tattow. From Polynesian

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The American Academy of Dermatology distinguishes five types of tattoos: traumatic tattoos, also called "natural tattoos", that result from

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Preserved tattoos on ancient mummified human remains reveal that tattooing has been practiced throughout the world for thousands of years. In

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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

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Some tribal cultures traditionally created tattoos by cutting designs into the skin and rubbing the resulting wound with ink, ashes or other agents;

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Tattooing is regulated in many countries because of the associated health risks to client and practitioner, specifically local infections and virus transmission. Disposable plastic aprons and eye protection can be worn depending on the risk of blood or other

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Historical associations
Among Austronesian societies, tattoos had various functions. Among men, they were strongly linked to the widespread practice of head-hunting raids. In head-hunting societies, like the Ifugao and Dayak people, tattoos were records of

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