Why the “Wait Six Weeks” Rule for Postpartum Exercise Is Changing

If you’ve had a baby, you’ve probably heard the same advice as every mum before you. Wait six weeks. Get cleared by your doctor. Then, and only then, think about exercise.

New research is starting to challenge that timeline, and for good reason.

Where the Six Week Rule Came From

Australian guidelines around postpartum exercise have stayed fairly vague for a long time. Most simply state that exercise is safe once there are no contraindications, without specifying when to resume or at what intensity. International guidelines have followed a similar pattern, generally advising women to begin around four to six weeks postpartum and to check in with a doctor or midwife first, particularly after a caesarean.

The problem is that vague advice creates real confusion. Some women hold back far longer than they need to. Others jump back into intense training too soon without any real guidance. Neither outcome serves anyone well.

What the New Canadian Guidelines Actually Say

In 2025, a set of updated Canadian guidelines brought together a large body of evidence, screening well over 500 studies, to offer clearer, more specific recommendations for postpartum physical activity. A few points stand out.

Physical activity is strongly recommended for postpartum women without contraindications, with meaningful benefits including a reduction in depressive symptoms. Early mobilisation, things like walking and pelvic floor muscle training, is encouraged as soon as it’s appropriate, progressing toward moderate to vigorous activity once surgical incisions and any tearing have sufficiently healed and bleeding hasn’t increased with movement.

This represents a genuine shift away from a strict, calendar based approach. Instead of counting to six weeks and only then giving the green light, the guidelines lean toward symptom based, functional progression. In plain terms, that means watching how a woman’s body actually responds, rather than relying on a date on a calendar.

Even certain contraindications, like worsening surgical pain or signs of relative energy deficiency, aren’t necessarily a reason to stop everything. In most of these cases, the recommendation is to modify or reduce intensity rather than pull activity away completely.

What This Means for Caesarean Recovery

Caesarean recovery deserves its own mention here, because a lot of the fear around it is based on a misunderstanding. The abdominal muscles aren’t cut during a caesarean. They’re moved apart. The layer that’s affected is the linea alba, the connective tissue running down the midline of the abdomen.

While the external incision typically closes at around six weeks, that only reflects the surface. Deeper tissue remodelling can continue for up to 12 to 18 months. That doesn’t mean movement needs to wait that long. It means recovery should be guided by how the tissue and the individual are responding, not treated as complete the moment the scar looks healed.

Rethinking the Fear Around Prolapse and Lifting

For years, the message to women with any symptoms of prolapse was blunt. Don’t lift anything heavy. That advice is also being reconsidered.

Lifting weights has not been shown to directly cause prolapse. Some degree of muscular and fascial laxity is common after a vaginal delivery, and that alone isn’t cause for alarm. Interestingly, one study comparing pelvic floor load found that a sneeze puts more pressure on the pelvic floor than a sit-up, or even standing up from a chair. For women with bothersome symptoms, working alongside a pelvic health physiotherapist to build a plan still matters, but the blanket instruction to avoid lifting altogether doesn’t hold up the way it once did.

Why This Shift Matters

None of this means postpartum recovery should be rushed. It means recovery can be guided by what a woman’s body is actually telling her, supported by proper screening and, where needed, referral to a pelvic health physiotherapist, rather than by a single date everyone is expected to hit regardless of their birth, their history or how they’re feeling.

For some women, that might mean returning to structured movement earlier than the old six week marker. For others, it might mean taking longer, and that’s just as valid. The goal isn’t speed. It’s making sure movement is matched to where someone genuinely is in their recovery.

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