The most sensitive areas on your body are the sternum, ribs, hands, and feet. The next most sensitive areas would be your ankles, lower back, neck, under arm, around the groin area (not a suggestion), and head. The least sensitive areas, and generally most popular for that reason, are your upper arms or forearms, calves, shoulder blades, outer thighs, and your ass. Pretty much anything that has bone, and less padding will hurt due to the vibrations on the needle to the applied surface.

We all have different tolerances and some people do not have trouble getting tattooed in any area (Ink Junkies). Its no way near giving birth (not that I know what that feels like), and people who have had surgeries often say that tattooing is just not that big of a deal, whereas people who have never experienced moderate pain, think tattooing can be quite painful. Getting a tattoo it is a unique feeling that can only be experienced by someone receiving one. They do have a tattoo goo that numbs the pain in the applied area, but that would just take all the fun away.

Tattoos are created by injecting ink into the skin. Injection is done by a needle attached to a tattoo Machine that moves the needle up and down at a rate of several hundred vibrations per minute and penetrates the skin by about one millimeter.

What you see when you look at a tattoo is the ink that's left in the skin after the tattooing. The ink is not in the epidermis, which is the layer of skin that we see and the skin that gets replaced constantly, but instead stays in the cells of the dermis which shows through the epidermis.