How long after having a tummy tuck can I start doing sit ups/crunches?

I would ask your plastic surgeon for a specific answer. I generally tell my patients that they should not expect to do any core or abdominal exercises for at least 6 weeks after a tummy tuck. Good luck!

It is commendable that you wish to return to exercise as soon as possible after surgery. Your plastic surgeon will be your best resource when it comes to determining the return to specific activities after the specific procedures performed. He/she will know exactly how you are progressing and whether or not you have experienced any complications. Remember, that he/she is ultimately responsible for your care.  Having said that, I ask my tummy tuck patients to start walking ASAP after surgery but refrain from any heavy-lifting or strenuous exercise for 6-8 weeks to prevent complications and ensure proper healing. It may be 4-6 months before you reach your full energy and strength levels. Best to “go slow” and listen to your body as you gradually increase your activity level. Best wishes.