OLD TATTOO FLARING UP

Plz if any1 has a suggestion why this is happening HELP! i got a tat almost 4 years ago...by a homemade gun and the fool that did it did major scarring... its always been a bit raised but all the sudden a small part of my scorpion is more raised then elsewhere...no pain. no redness...its just raised more then its ever been. any1 know why??? THNKS

Scar tissue can be weird. It may swell due to change in temperature or in altitude. or could be a reaction to a change in you daily routine. keep an eye on it if it starts to hurt or get red you may wanna see a doc but it will prob go down in a day or two.