“Mom hip” is a postural shift that develops during and after pregnancy, where weak glute muscles, loose ligaments, and months of carrying a child on one side leave your pelvis tilted and your hips feeling unstable or painful. It’s not a single injury but a combination of muscle imbalances and joint laxity that you can reverse with targeted strengthening, posture corrections, and patience. Most women see significant improvement within a few months of consistent work.
What Actually Happens to Your Hips
During pregnancy, your body releases a hormone called relaxin that loosens the muscles, joints, and ligaments of your pelvis to make labor easier. That loosening can increase pelvic joint motion by 32% to 68%, which places enormous demand on the surrounding muscles to keep everything stable. At the same time, the growing uterus and weight gain stretch and weaken the muscles around your lower back, hips, and pelvis.
The muscles hit hardest are the ones you need most for hip stability. Postpartum women show reduced thickness and contractility in the gluteus maximus (your largest glute muscle) on both sides, along with weakness in the gluteus medius, the smaller muscle on the outer hip responsible for keeping your pelvis level when you stand on one leg. Your lower back muscles thin out too, while certain hip flexor muscles actually tighten and thicken to compensate. The result is a pelvis that tips forward, hips that sway or shift to one side, and a body that has essentially forgotten how to distribute load evenly.
After birth, relaxin levels drop but remain elevated for months. Some sources estimate it can take up to 12 months for relaxin to return to pre-pregnancy levels, and breastfeeding can extend that timeline further. So even after delivery, your joints and ligaments are still looser than normal, which means your muscles need to do extra work to stabilize your frame.
Why One Hip Hurts More Than the Other
Most parents default to carrying their baby on the same hip every time. This creates an asymmetrical loading pattern where one side of your pelvis hikes up while the opposite hip drops and bears the weight. Over weeks and months, the muscles on the loaded side tighten while the other side weakens further. You end up with a visible shift: one hip that pops out to the side, uneven shoulders, and sometimes a slight twist through your torso.
This asymmetry also explains why many women feel pain in one specific spot. The outer hip bone (the greater trochanter) takes a beating when the gluteus medius isn’t strong enough to control pelvic movement, leading to inflammation and tenderness right at the side of the hip. Others feel a deep ache in the back of the pelvis near the sacroiliac joint, which connects the base of your spine to your pelvis and is particularly vulnerable when ligaments are lax.
SI Joint Pain vs. Hip Joint Pain
If you’re not sure where your pain is coming from, location and aggravating movements can help you tell the difference. SI joint pain tends to feel like a dull ache or stiffness in the back of the pelvis, and it gets worse with prolonged sitting, standing on one leg, or climbing stairs. Hip joint pain is more focused on the front or side of the hip and flares up with walking, rotating your leg, or pulling your knee toward your chest. Many postpartum women have both happening at once.
Exercises That Rebuild Hip Stability
The core goal is reactivating your glutes, especially the gluteus medius, and restoring balanced strength on both sides of your pelvis. A functional training program performed three times a week for four weeks has been shown to meaningfully improve gluteus medius strength. The following exercises target exactly the muscles that pregnancy weakens.
- Side-lying hip abduction: Lie on your side with legs stacked, then lift the top leg toward the ceiling while keeping your hips from rolling backward. This isolates the gluteus medius with minimal load on your joints, making it a good starting point.
- Banded lateral walk: Place a resistance band around your ankles or just above your knees, then step sideways in a half-squat position. Keep your toes pointing forward and resist the band pulling your knees inward. This forces the outer hip muscles on both sides to fire simultaneously.
- Single-leg deadlift: Stand on one leg, hinge forward at the hips, and extend the opposite leg behind you. This challenges your balance and forces the standing leg’s glute to stabilize the pelvis, directly countering the lateral shift pattern.
- Squat with slow lowering: Perform a squat but focus on taking three to four seconds on the way down. The deceleration component builds the kind of eccentric strength your hips need for real-life movements like picking up a child from the floor.
Aim for three sets of 15 repetitions per exercise. Start with bodyweight only and add resistance bands or light weights as you get stronger. Physical activity can begin as early as 12 hours after a vaginal delivery and 48 hours after a cesarean, but intensity should increase gradually over the following weeks. If you had complications or a difficult delivery, a slower ramp-up makes sense.
The Pelvic Floor Connection
Your pelvic floor muscles and your hip muscles don’t work in isolation. Research shows that contracting your pelvic floor positively influences the contraction of the piriformis, a deep hip rotator that sits behind the hip joint. When both muscle groups contract at the same time, the piriformis thickens more than when either contracts alone, suggesting they function as a team for pelvic stability.
This means pelvic floor exercises (like Kegels) aren’t just about bladder control. They contribute to hip stability too. And it works in reverse: strengthening your hip rotators can support your pelvic floor. If you’re dealing with both hip instability and pelvic floor symptoms like leaking or pressure, working on both systems together tends to produce better results than addressing either one alone.
Daily Habits That Speed Recovery
Exercise alone won’t fix mom hip if you’re reinforcing the problem all day long. The biggest culprit is carrying your child on the same hip every time. Alternate sides regularly, even if one feels more natural. Better yet, use a carrier when possible. Inward-facing soft-structured baby carriers position your child in a way that distributes their weight more evenly across your torso rather than loading one hip.
When standing, notice if you’re shifting your weight onto one leg and popping that hip out. This is the classic “mom stance,” and it feels comfortable because your weakened muscles don’t have to work. But it reinforces the imbalance. Practice standing with your weight evenly distributed and a slight engagement of your lower abs, as if you’re gently bracing for a cough.
Sitting posture matters too. Crossing the same leg every time or sitting with your pelvis tucked under you tightens the hip flexors that are already compensating for weak glutes. Sit with both feet flat on the floor when you can, and take short breaks from any position you’ve held for more than 30 minutes.
Realistic Timeline for Recovery
Because relaxin can remain elevated for up to a year postpartum, your ligaments need time to tighten back up regardless of how diligently you exercise. Strength gains in the glutes typically become noticeable within four to six weeks of consistent training. The postural shift itself, where your pelvis visibly sits unevenly, often takes longer to fully resolve because it involves retraining movement patterns your body has been defaulting to for months.
Most women notice meaningful improvement within three to four months of regular strengthening and posture correction. If you’re still experiencing significant pain or instability after that window, a physical therapist who specializes in postpartum recovery can assess whether something more specific is going on, like SI joint dysfunction or tendon irritation at the outer hip, and tailor a program accordingly.