My wife has diastasis. The doctor has told her she will need surgery to repair this. Is there anything she can do to start making improvements to this condition until we can get the surgery scheduled?
Look up “Lose Your Mummy Tummy” and the Tupler technique.
http://www.fitpregnancy.com/fitness/postnatal_workout/40871562.html
I also had a significant diastasis and had surgery to repair it. Good luck to her 