Is this liporaspiration and why did it take so long to show up? Will anything help? Should be wearing compression hose? (photo)

I am 52 yrs. old and had Vaser smooth on front of thighs along with lipo of inner/ back of thighs almost a year ago. PS did a fat transfer to my butt. I was only 120 lbs when had surgery. I just recently started noticing this discoloration, which goes away when I sit down. i am worried about it getting worse. Please help.. Thank you, Regina