Tattoo will leave a scar, but the scar is not caused by washing the tattoo, but in the original tattoo process has been formed, the tattoo pigment will show up after washing. Tattoo washing is usually the application of picosecond laser selective photothermolysis to remove the pigment particles formed by the tattoo, the number of tattoo washing needs to be judged according to the depth of the subcutaneous, generally about three times can be completely clean, each time you need an interval of about three months. If the color of the tattoo is green and red more difficult to clean off. If the scar body, cleaning is sure to leave scars; and not scar body, may not be so obvious, so wash the tattoo must choose to go to formal institutions to avoid incorrect operation leads to serious scars or infection. Just wash the tattoo within three days try not to get wet, but also do not carry out strenuous exercise, to ensure that the tattoo wash parts of the skin dry, scabs waiting to fall off on their own.