The belly that stays after a baby is not always fat. In six out of ten women who have given birth, the two long muscles down the front of the abdomen have been pulled apart by the growing uterus, and the connective tissue between them, the linea alba, has stretched thin and not pulled back. That is diastasis recti. The lower belly bulges or domes, the core feels weak, the back aches, and no number of crunches flattens it, because crunches push on the very gap that is the problem. People call it the mommy pooch.
Which treatment fits depends on how wide the gap is and what is sitting over it.
Check the gap
Lie on your back with your knees bent, lift your head and shoulders a little, and press your fingers into the midline above your navel. If they sink into a gap two fingers wide or more, or the belly rises into a ridge when you lift, you have a separation worth raising with a provider. Clinicians diagnose it at a gap wider than two centimeters. It can sit above the navel, below it, or run the whole length. A gap that comes with a bulge at the navel itself may be a hernia and needs a doctor rather than a trainer.
Then look at what is over the gap. Loose, stretch-marked skin that folds when you bend is skin excess, and no exercise or device removes it. A soft layer of fat over a firm wall is fat. Many women have all three.
Physical therapy first
Mild gaps often narrow in the months after birth as the muscles recover, and about 45% of women still have one at six months. A physical therapist who treats diastasis is the right first stop: the work is deep abdominal engagement, controlled breathing and slow movement, and it avoids crunches, sit-ups, unmodified planks and push-ups, boat pose and leg lifts, which drive the gap open. A belly band supports posture and does not close anything. This is also the right first step before any clinic treatment, because surgeons and device operators both get better results on a core that has been trained.
Muscle stimulation
Emsculpt NEO contracts the abdominal muscles thousands of times in a 30-minute session, and in two small studies the muscle measurably thickened and the gap measurably narrowed: about 10% in 22 adults, and 17 to 23% in ten postpartum women, in whom the four measurable separations no longer met the threshold at three months. Those studies had no control group, their authors call for larger controlled work, and both had ties to the manufacturer. The device is cleared by the FDA for fat reduction and circumference, not for diastasis. So the honest place for it is a mild gap you are also treating with a therapist, where a narrower measurement and a firmer wall are worth having. It does not stitch anything closed.
The repair: tummy tuck
A tummy tuck is the only treatment that closes a wide gap. The surgeon brings the two sides of the muscle together with a line of sutures down the midline, removes the loose skin and some fat, and resets the navel. It is the answer for a wide separation, a hernia at the navel, a lower belly that bulges however strong the core becomes, and any amount of hanging skin. Surgeons advise waiting until you are done having children and your weight has been stable, because another pregnancy or a large weight swing can undo the repair. It is not a weight loss operation, and it does not remove stretch marks except those on the skin that is cut away.
How to choose a provider
For therapy, ask how many postpartum patients they treat and how they measure the gap. For a device, ask what they expect it to change in your gap specifically, and what they would say to someone with three fingers of separation (the right answer involves a surgeon). For surgery, ask how they repair the muscle, what they do with a hernia if they find one, and to see results at a year on women who started with a similar gap and similar skin. Any provider who does not ask whether you plan more children is skipping the question that matters most.
Browse the surgeons and clinics below. Measure your gap in fingers above and below the navel before you go; it is the first thing they will ask.