The q-switched nd yag laser is a type of laser developed to remove blue, brown, black colours of tattoo pigments & birth marks from the skin. Repeated laser treatments are often necessary. The no. Of treatment varies depending on the lesions, size, location, colour and age of the patients. Most likely a total of 3 to 7 visits or more will be necessary.
Some tattoo pigment is located too deep in the skin to be removed completely inspite of repeated treatment. Generally black & brown birthmarks like nevons of ota are treated with this laser. Result varies from person to person depending on depth of lesion.