Hello dear, Thank you for your post. In a tummy tuck or abdominoplasty surgery, the tissue above the abdominal muscles is lifted off of the muscles from the lower scar to the ribs in a full tummy tuck. The superficial nerves that travel through the muscle to the skin are cut in order to do this. This is what causes the numbness afterward. The numbness usually extends in the entire area that was lifted up. On occasion, a superficial nerve to the thigh could be pulled causing numbness in this area as well. Numbness may take months to years to go away, and the last place to go away is the area right above the incision centrally, and sometimes right below the belly button. It may take up to 2 years to get to baseline sensation. sometimes, certain areas never feel totally normal, especially the area right above the incision centrally. But I recommend to see your doctor for more information. Good luck :)