What is the best way to reverse abdominal etching? 1 year post op. (photo)

It looks like you need a revision procedure. It may also have been that you needed a mini amount of skin removal for the best result. I suggest seeing someone with experience in body shaping and fat grafting. Best, Dr. Emer.

Thanks for sharing your pics. It is difficult to correct this, would suggest to undergo liposuction for entire abdomen and remove the fat between the etching to give a better contour. Consult a board certified plastic surgeon.