suui answered question 3/23/2011 I got a tattoo 4 days ago and since then my leg has been pretty swollen and feels tight the tattoo itself is fine no infection no redness nothing just the swelling leg what causes this and is it normal and what should i do? Allergic reaction to the ink. When you got the tatto, the ink flowed into the bloodstream and irritated the cells causing them to swell.