That Little Leak on the First Jump Is Telling You Something
It is common after a baby, but it is also your body asking for a slower, smarter return to impact.
If you have ever felt that tiny leak the moment you started running, jumped on a trampoline with your toddler, or pushed through a round of star jumps, you are not broken and you are certainly not alone. Leaking when you jump postpartum is one of the most common things new mums quietly worry about, and many assume it is just their new normal. It is common, yes, but common does not mean it is something you simply have to accept forever. With the right gentle steps, most mums can rebuild and return to the exercise they love.
Quick answer
It can be safe to return to running or higher-impact exercise after a baby, but leaking urine when you jump is a sign your pelvic floor is not yet ready for that load, so the answer is to rebuild first rather than push through. Most experts suggest waiting until around 12 weeks postpartum, training your pelvic floor and deep core, and progressing gradually from low impact to high impact. If leaking continues despite this, see a women's health physiotherapist or your GP, because it is very treatable.
Why you leak when you run or jump after a baby
Your pelvic floor is a hammock of muscles that supports your bladder, bowel and uterus, and helps keep you continent. Pregnancy stretches and loads these muscles for months, and birth, whether vaginal or by caesarean, adds further strain. When you run or jump, the impact sends a downward force through your body each time you land. A strong, well-coordinated pelvic floor responds by tightening at exactly the right moment to keep everything sealed. A pelvic floor that is still recovering may not yet generate that quick, automatic squeeze, so a small amount of urine escapes. This is called stress urinary incontinence, and it is extremely common in the first months after birth.
It is worth understanding that leaking with high-impact exercise after childbirth is a signal, not a life sentence. It tells you that the demand of the activity is currently greater than what your pelvic floor can manage. The goal is to close that gap by building strength and coordination, not by avoiding movement forever or by gritting your teeth and ignoring it. Pushing through repeated leaking can reinforce the very pattern you want to change and may add strain to tissues that need time.
Should you wait before returning to running or HIIT?
Yes, and patience here pays off. A widely cited physiotherapy consensus on returning to running after birth suggests waiting until at least around 12 weeks postpartum before resuming higher-impact activity, and only then once you can comfortably manage a series of strength and load tests without symptoms. This is true even if you feel energetic and ready sooner. The tissues that support your pelvis and core continue to recover well beyond the standard six-week check, and impact is one of the highest demands you can place on them.
If you had a more complicated birth, a significant tear, or a caesarean, give yourself even more grace and check in with your GP or midwife before adding impact. The same goes if you feel any heaviness or dragging sensation in your pelvis, which can suggest your pelvic floor needs more support before you load it. There is no prize for rushing, and a steady build now protects you for decades to come.
Rebuild the foundation first
Before you lace up your trainers, a guided plan can help you reconnect to the muscles that stop the leaks.
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How to stop leaking during exercise after baby: the foundation
Before any jumping, the most important work happens at the foundation level: training your pelvic floor and deep core so they fire automatically. Pelvic floor muscle training, often called Kegels, is the evidence-backed first-line approach, and it works best when done consistently and correctly. Many mums squeeze too hard, hold their breath, or grip their tummy and glutes instead, so technique matters more than effort.
Here is a simple way to find and train the right muscles:
- Find the muscles. Imagine gently stopping the flow of urine and holding back wind at the same time. You should feel a soft lift and squeeze around the front and back passages, without clenching your buttocks or thighs.
- Practise long holds. Lift, hold for a few seconds while breathing normally, then fully release. The release is just as important as the lift.
- Practise quick squeezes. Short, sharp lifts train the fast response you need the instant you land from a jump.
- Add the breath. Exhale gently and lift your pelvic floor as you do anything effortful, such as standing up, lifting your baby, or later, landing from a hop.
Pair this with deep core breathing, where your tummy and pelvic floor gently rise and fall with each breath, and you build the coordinated team that keeps you sealed under load. Energy and consistency help too, and if exhaustion is making it hard to stick to a routine, a gentle daily rhythm can make all the difference, as we cover in how to get more energy as a new mum.
A gentle return to impact, step by step
Once your foundation feels solid and your leaking has eased with everyday activity, you can begin a graded return to impact. The idea is to progress only when you can do each stage without leaking, heaviness or pain. If symptoms appear, you simply drop back a stage and build again. There is no failing here, only useful information.
| Stage | What it looks like | Move on when |
|---|---|---|
| 1. Foundation | Daily pelvic floor and deep core breathing, plus walking | No leaking with walking or daily lifting |
| 2. Low load | Bridges, squats, lunges, gentle strength work | You can manage strength work without symptoms |
| 3. Light impact | Heel raises, gentle hopping, marching, single hops in place | No leaking, heaviness or pain on hopping |
| 4. Building impact | Jogging intervals, skipping, faster walking with short runs | You can run a few minutes symptom free |
| 5. Full impact | Running, HIIT, jumping, trampoline play | Comfortable and dry across a full session |
Take your time at each stage. A few extra weeks now is a small price for being able to run, jump and play with your children for years without worry. For more on timing your first run specifically, our guide on when it is safe to run again after having a baby walks through the readiness checks in more detail.
Small tweaks that reduce leaking right now
While you build strength, a few practical adjustments can help you feel more confident and dry day to day:
- Empty your bladder before exercise, but avoid the habit of going just in case too often, which can train your bladder to signal sooner.
- Exhale and lift on effort. Breathe out and gently lift your pelvic floor as you land, lift or push.
- Choose lower-impact swaps for now, such as brisk walking, swimming, cycling or a low-impact strength session, so you keep moving without overloading.
- Mind constipation. Straining adds downward pressure, so plenty of fibre, fluids and a relaxed toilet posture help your pelvic floor.
- Wear support you trust. A good sports bra and comfortable, supportive clothing can help you focus on technique rather than worry.
These tweaks do not replace the strengthening work, but they make the journey there far more comfortable, and they reduce the daily frustration of unexpected leaks.
weeks postpartum is a common minimum before higher-impact exercise like running
months of consistent pelvic floor training often needed to feel real change
line treatment for leaking is pelvic floor muscle training, not surgery
When leaking means it is time to see someone
Leaking that improves steadily as you train is reassuring. But some signs mean you should reach out to a professional rather than keep working on it alone. Please see your GP or a women's health physiotherapist if you notice any of the following: leaking that is not improving after a few months of consistent pelvic floor work, leaking that happens with very little effort such as coughing or standing, a heavy or dragging feeling in your pelvis or a sense that something is bulging, any pain, or leaking of stool or wind that you cannot control. None of these are anything to be embarrassed about, and a women's health physio can assess you internally, check your technique, and tailor a plan to you. In many areas you can refer yourself without seeing your GP first, and this kind of help is exactly what they are there for.
Mental load matters too. If worrying about leaks is stopping you exercising or affecting how you feel about your body, that is a valid reason to ask for support, and getting the right help early often means a faster, smoother recovery.
A calm, step-by-step path back to impact
Build the pelvic floor strength and coordination that lets you run and jump with confidence again.
Explore Pelvic Floor Restoration, and new mums get 20% off with code GLOW20.
Frequently asked questions
Is it normal to leak urine when I run or jump after having a baby?
Yes, leaking with impact is very common in the months after birth because your pelvic floor is still recovering from pregnancy and delivery. It is common, but it is not something you simply have to live with, as it usually improves with pelvic floor training and a gradual return to impact.
How long should I wait before running again after a baby?
A widely used physiotherapy guideline suggests waiting until at least around 12 weeks postpartum before higher-impact activity like running, and only once you can manage strength and load tests without leaking or heaviness. If you had a caesarean or a complicated birth, check with your GP or midwife first.
Will the leaking go away on its own?
For some mums it eases naturally in the early weeks, but for many it needs active pelvic floor muscle training to fully resolve. Doing nothing and pushing through impact can keep the pattern going, so gentle, consistent strengthening is the reliable path.
Should I just avoid jumping forever to stop the leaks?
No, avoidance is not the goal. Leaking is a sign your pelvic floor needs strengthening for that load, not that impact is off limits for good. With a graded return, most mums get back to running, HIIT and trampoline play comfortably.
When should I see a doctor or physio about leaking?
See your GP or a women's health physiotherapist if leaking is not improving after a few months of consistent training, happens with minimal effort, comes with pelvic heaviness or a bulging feeling, or if you leak stool or wind. This is very treatable, and many areas allow you to self-refer to a physio.
Sources: ACOG (American College of Obstetricians and Gynecologists) exercise guidelines for postpartum return to activity; the Chartered Society of Physiotherapy and pelvic health physiotherapy return-to-running guidance (Goom, Donnelly and Brockwell consensus); and Mayo Clinic postpartum care guidance.
This article is general education and not medical advice. Postpartum recovery is individual and results vary. Always check with your GP, midwife, or a women's health physiotherapist before starting new exercise, especially after a c-section or if something does not feel right.