Face lifts take months for the swelling to properly go down. Up to 2 years but it's not very noticeable after the first 2-3 months.
I've assumed that's what she's had as there are very few procedures that would keep her out of the public eye for this long.
It's going to be so evident though and all the 'abdominal surgery' rhetoric will be incredibly embarrassing for KP.
I feel like this is why they posted the picture the other day so any change in the way she looks when we next see her was supposed to be headed off with people thinking she looked normal on Mother's Day which was after the op.
And now this photo where her face is hidden.