Diastasis recti exercises: when to modify or stop

What does the evidence say about exercises to avoid with diastasis recti during pregnancy?

1. Diastasis recti symptoms and the sense of a widening gap characteristically get worse with movements that spike abdominal pressure, the crunch motion in a traditional sit-up being the clearest example, which is a central reason postpartum guidance steers toward gentler core activation instead. 1
2. A researched postpartum corrective-exercise program for diastasis recti abdominis was built around controlled, isometric movements: glute bridges, supported plank holds, marching while in a bridge position, and dead bugs, paired with diaphragmatic breathing and focused abdominal contractions, rather than moving through a full crunch or sit-up range. 2
3. Visible distortion of the abdomen during a muscle contraction, ongoing discomfort, or an accompanying hernia are physical findings that can shift diastasis recti from routine home exercise toward a more active management plan or a surgical opinion. 3
4. A true abdominal wall hernia has a fascial defect that a diastasis does not, which is why a firm, painful, or non-reducing bulge deserves a hands-on check before ramping up any ab-focused routine rather than assuming it is just the gap. 1
5. Roughly 65 percent of adult umbilical hernias eventually need surgical repair, and a small share need emergency surgery for a trapped section of bowel, which is the practical reason a bulge that behaves differently from an ordinary diastasis is worth ruling out first rather than working through with exercise alone. 4

How this changes over time

• In the early weeks after birth, skip the flat-back crunch pattern entirely and let swelling and tenderness settle first. Diaphragmatic breathing and gentle pelvic tilts are a reasonable starting point before any structured program.
• By a few months out, once you have clearance to build back up, a program built around controlled, isometric moves such as glute bridges, supported plank holds, and dead bugs has been studied specifically for this gap, rather than working through a full sit-up range.
• If you are still working on this later in postpartum recovery, keep watching for doming or bulging along the midline during any move, since that visual sign is one of the findings a provider weighs when deciding whether more active management is worth pursuing.