Bringing a baby into the world is an incredible experience, but it’s also one of the most physically demanding events your body will ever go through. Many new moms are surprised to find that after delivery, their low back hurts more than expected. Whether you had a vaginal birth or a cesarean, it’s common to experience low back pain in the early postpartum weeks. Before you’re cleared to start formal physical therapy or exercise (usually around 6 weeks postpartum), there are gentle and effective things you can do to support your recovery, reduce discomfort, and set the stage for healing.
Why Low Back Pain Happens After Birth
During pregnancy, your body goes through major changes that affect your spine and core:
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Hormonal changes: Relaxin softens your ligaments to prepare for delivery, but that same looseness can make your back and pelvis feel unstable.
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Postural shifts: As your belly grows, your center of gravity moves forward, and your back muscles work overtime to keep you upright.
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Core and pelvic floor weakness: After birth, your abdominal and pelvic muscles are stretched and often inhibited — meaning your back picks up the slack.
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Daily habits: Feeding, diaper changes, and carrying your baby often happen in awkward positions that strain your spine.
What’s Normal vs. What’s Not
Some back soreness, stiffness, or mild aching is normal in the first few weeks after giving birth.
However, it’s important to contact your provider sooner if you experience:
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Sharp, shooting, or worsening pain
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Numbness, tingling, or weakness in the legs
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Pain accompanied by fever or wound redness (especially after a C-section)
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Pain so severe that you can’t care for yourself or your baby
Gentle Things You Can Do in the First 6 Weeks
While you’re healing, think of this time as restorative movement, not “exercise.” The goal is to reconnect with your breath, posture, and gentle mobility — not to strengthen or push.
1. Breathe Well
Your diaphragm and pelvic floor work together like a team. Deep, slow belly breathing helps restore this connection.
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Place one hand on your ribs and one on your belly.
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Inhale through your nose, feel your ribs and belly expand.
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Exhale gently through your mouth, letting your ribs soften and your pelvic floor lift slightly.
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Repeat for 1–2 minutes, several times a day.
2. Support Your Posture
Your back will thank you if you:
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Use pillows while feeding to bring your baby to you, not the other way around.
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Avoid standing with your hips pushed forward, try to keep weight evenly through both feet.
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When lifting the baby or car seat, bend your knees and keep your core gently engaged.
3. Move a Little, Often
Short, gentle walks around the house or outside (if cleared) help circulation and prevent stiffness.
If sitting for long periods, stand up every hour to stretch your hips and back.
4. Try Gentle Core Activation
When you’re ready, you can start very light “core reconnection”:
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Lying on your back with knees bent, inhale to relax.
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Exhale and gently draw your lower belly in, feeling your pelvic floor lift slightly.
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Hold for 3–5 seconds, then relax completely.
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Repeat 5–10 times, 1–2 times a day.
5. Use Heat or Support
A warm compress on your lower back can soothe muscle tension.
If you feel unstable, a light postpartum support belt can provide temporary relief (but avoid wearing it all day, you still want your muscles to re-engage naturally).
When to Start Physical Therapy
Most people are cleared for postpartum physical therapy around 6 weeks after delivery (sometimes sooner for gentle guidance if your provider agrees).
A pelvic floor PT can help you:
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Reconnect your core and pelvic floor safely
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Address lingering back or hip pain
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Assess diastasis recti or scar healing
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Create a personalized progression for rebuilding strength and stability
The Bottom Line
Low back pain after birth is common, but not something you have to live with. The early postpartum weeks are an opportunity to rest, reconnect, and start laying the foundation for long-term healing.
Be gentle with yourself, and remember, your recovery matters just as much as your baby’s needs.
If you’re struggling with any pregnancy or postpartum concerns and want a personalized evaluation and treatment plan, make an appointment with one of the Pelvic Floor Physical Therapists at The Pelvic Health Center in Madison, NJ. We’re trained to help identify and treat the causes of your incontinence! Give us a call at (908)443-9880