Do you have a tattoo?  I've been thinking of getting one but am afraid that it might be painful!
I do have a tattoo! I would say that it is mainly decorative, as opposed to symbolic or pictorial
How do they get the ink into the skin?
The ink is inserted into the dermis layer of the skin, which permanently changes the pigmentation of the skin
Interesting!  I know it's supposed to be permanent, but can a tattoo be removed at all?
Yes, although tattoos were once considered permanent, there are different methods of tattoo removal now
Good to know, in case I decide I don't like it!  How does a tattoo get removed from the skin?
destroyed surrounding tissue structures as well as tattoo ink. Treatment tended to be painful and cause scarring.
Before the development of laser tattoo removal methods, common techniques included dermabrasion, TCA (Trichloroacetic acid, an acid that removes the top layers of skin, reaching as deep as the layer in which the tattoo ink resides), salabrasion (scrubbing the skin with salt), cryosurgery and excision which is sometimes still used along with skin grafts for larger tattoos. Many other methods for removing tattoos have been suggested historically including the
Tattoo
A tattoo is a form of body modification where a design is made by inserting ink, dyes and pigments, either indelible or temporary, into the dermis layer of the skin to change the pigment. The art of making tattoos is tattooing. 
Tattoos fall into three broad categories: purely decorative (with no specific meaning); symbolic (with a specific meaning pertinent to the wearer); pictorial (a depiction of a specific person or item). In addition, tattoos can be used for identification such as