I am sorry to say that at four months, it is doubtful that you will see substantial changes -- minor yes, major no. The sad fact of liposuction is that depending upon the amount removed and beginning elasticity of your skin, loose skin is a possibility. I have some loose skin on my upper abs after lipo, however, my plastic surgeon was honest with me going in, telling me that was a possibility. However, on lower abs, thighs, and buttock all my skin tightened -- and I did not have to wait three months. All in all, I am still very happy with my results two years later.