Is It Too Late to Fix My Core After Having a Baby?

Months or years postpartum, your core can still change. A physiotherapist explains why it's not too late to fix diastasis recti — and what actually works.

Maybe your baby is eight months old. Maybe she's starting kindergarten. Either way, you're here because something about your core still doesn't feel right — a gap down your midline, a belly that "doms" when you sit up, a weakness that never resolved — and you're quietly wondering: is it too late to fix diastasis recti and actually rebuild your core? Here's the short, honest answer from a physiotherapist: no, it's not too late. Muscles and connective tissue respond to the right training at six weeks postpartum, at two years, and well beyond. What changes over time isn't whether you can improve — it's simply that nobody handed you a plan, so your body has been waiting for one.

Let's unpack what's actually going on, and what "fixing it" realistically looks like.

First, what diastasis recti actually is

During pregnancy, your abdominal wall stretches to make room for your baby, and the connective tissue down your midline (the linea alba) widens. That separation is called diastasis recti, and it's a normal part of pregnancy — research suggests the majority of women have some degree of separation at six weeks postpartum. For many it narrows on its own; for others, the gap and the weakness stick around, along with the "pooch" that won't budge, back aches, or a core that feels like it just doesn't switch on.

If that lingered for you, it doesn't mean your body failed or you missed some deadline. It usually means the deep-core system — diaphragm, pelvic floor, deep abdominals, and the muscles along your spine — never got retrained to work as a team again.

Why "is it too late to fix diastasis recti" is the wrong worry

Your tissues don't have an expiry date. The principle that drives all rehabilitation — progressive, appropriate loading changes muscle and connective tissue — keeps working for your entire life. Reviews of postpartum research show exercise programs targeting the deep core can reduce the inter-recti distance (the gap) and, just as importantly, improve how your abdominal wall functions, in women well beyond the early postpartum window.

Two honest caveats, because health content should be honest:

• Research is still maturing. Studies vary in how they measure and train diastasis, so no single "best protocol" has been crowned. That's an argument for individualized guidance, not for giving up.
• "Fixed" means function first. For most women, success is a core that's strong, connected, and symptom-free — lifting, carrying, running, laughing without a second thought. The gap often narrows too, but a millimetre count isn't the goal; a body you trust is.

What actually changes a years-old core issue

Whether you're six months or six years out, the rebuild follows the same order:

Reconnect the pressure system. Breath first: ribs expanding, pelvic floor and deep abdominals engaging on the exhale, releasing fully on the inhale. Years of compensating (breath-holding, gripping, bracing) usually need un-learning before strengthening pays off.

Load the midline gradually. The linea alba responds to tension, not rest. Controlled, progressive core work — done in positions where you can keep the connection — is what stimulates tissue to remodel.

Progress to real life. Carrying a growing child, returning to running, lifting at the gym. The later stages should look like your actual life, because that's what your core needs to handle.

If you were recently cleared at your six-week check and aren't sure what that clearance actually means, see the article "'Cleared for exercise' — what it really means".

Signs it's worth getting assessed rather than guessing

General exercise advice is a fine starting point, but an individualized assessment earns its keep if you notice: a gap wider than about two finger-widths, or one that bulges or "tents" when you lift your head; leaking with coughs, sneezes, or exercise; pelvic heaviness or pressure; persistent back or hip pain; or a core that still feels "off" no matter what program you follow. None of these are emergencies — but all of them are signals that your system needs a specific plan, not a generic one. A licensed pelvic-health provider in your area can build that with you.

The real cost isn't the gap — it's the waiting

Here's what I see in practice: the separation itself is rarely the biggest problem. The bigger cost is the years spent avoiding — not lifting, not running, not wearing certain clothes, quietly opting out — because nobody ever said "yes, this is still changeable." The women who improve aren't the ones who started earliest. They're the ones who started with the right order and stuck with it. Progress at two or five years postpartum tends to be steady and very real; your body simply needed the request.

Frequently asked questions

Written by Harleen Kalra, registered physiotherapist (BC, Canada).

This article is general education from a physiotherapist's perspective. It is not individualized physiotherapy advice, does not create a therapist-patient relationship, and is not a substitute for care from a licensed healthcare provider in your area. Harleen Kalra is a physiotherapist registered in British Columbia, Canada. For personalized assessment and treatment, please see a licensed pelvic-health provider where you live.