Pelvic Girdle Pain (and SPD): Why Your Pelvis Hurts in Pregnancy

If walking, climbing stairs, rolling over in bed, or getting out of the car sends a deep ache or sharp pain through the front of your pelvis or your hips, there's a good chance you have pelvic girdle pain — and the first useful thing to know is that it has a name and that help exists. Many moms suffer through it assuming it's just "part of pregnancy" and that nothing can be done. Both halves of that assumption are wrong.

Pelvic girdle pain (PGP) is common, it's driven by your joints loosening rather than anything being damaged, and it responds to the right kind of support and movement.

#What Pelvic Girdle Pain Is

Your pelvis is a ring made of several bones connected by joints: the pubic symphysis in the front (where the two halves of your pelvis meet, low and center) and the two sacroiliac joints in the back (where your pelvis meets your spine). Pelvic girdle pain is pain in any or all of these joints.

When the front joint is the main culprit, you'll sometimes hear it called symphysis pubis dysfunction, or SPD. The pain there is often a sharp, grinding, or bruised feeling right over the pubic bone, sometimes radiating into the groin or inner thighs.

The hallmark of PGP is that it flares with movements where your legs do different things — standing on one leg to get dressed, climbing stairs, rolling over, opening your legs to get out of the car. Anything that asks the two halves of your pelvis to move independently tends to hurt.

#Why Pregnancy Causes It

The same hormone that helps your body prepare for birth is the main reason this happens. Relaxin loosens the ligaments holding your pelvic joints together, so that your pelvis can open enough for your baby to pass through during delivery. That's the design, and it's a good one.

The trade-off is that a looser pelvic ring is a less stable one. Joints that used to move barely at all now shift slightly with each step, and that movement — plus the growing weight they're carrying — can irritate and inflame them. Add a center of gravity that keeps shifting forward, and the muscles around the pelvis fatigue trying to compensate.

So PGP isn't a sign that something tore or broke. It's the predictable downside of a pelvis doing exactly what pregnancy hormones are asking it to do.

#The Movement Tricks That Help Most

Because PGP flares with asymmetric movement, the single most useful principle is: keep your legs together and your movements symmetric. A handful of specifics:

• Roll, don't twist. Getting out of bed, keep your knees together and roll onto your side first, then push up with your arms. The same knees-together move helps getting out of a car (swing both legs out together).
• Sit down to dress. Putting on pants or shoes while standing on one leg is a classic trigger. Sit, and bring your clothing to you.
• Take stairs gently, or one at a time. Lead with your less painful leg, and use the rail.
• Squeeze a pillow between your knees at night and keep one there when you roll, to keep your pelvis aligned.
• Avoid the splits-y movements — big strides, lunges, breaststroke kicks, sitting cross-legged on the floor — that pull the pelvic joints apart.
• Keep your steps shorter. Long strides open the pelvis more with each step.

These aren't restrictions for their own sake — they're targeted at the exact movements that aggravate the joint.

#Treatment and What Happens After Birth

PGP is genuinely treatable, and you don't have to white-knuckle it:

• Pelvic physical therapy is the cornerstone. A prenatal-trained PT can assess which joints are involved, give you targeted stabilizing exercises, and provide hands-on treatment. If your pain is interfering with daily life, asking for a referral is completely reasonable.
• A pelvic support belt wraps around your hips to gently compress and stabilize the pelvic ring. Many moms get meaningful relief from one, especially while walking.
• Activity modification — the movement tricks above — does a lot of the daily work.
• Heat, rest between activities, and good positioning all help calm a flared joint.
• Pain relief, if needed, is a conversation with your team about what's appropriate for you and how far along you are.

The reassuring headline: pelvic girdle pain usually improves substantially after delivery, often within weeks, once the weight is gone and your hormone levels shift back. For most moms it's a pregnancy problem, not a forever problem. If it lingers well past the early postpartum weeks, that's worth continuing with pelvic PT rather than assuming you're stuck with it.

And one practical note for delivery: if your PGP is significant, mention it to your birth team. Positions that open the legs very wide can aggravate it during pushing, and your team can help you find pushing positions that protect the joint.

#The Reframe

Pelvic girdle pain is your loosened, hard-working pelvis protesting — not a sign of damage, and not something you have to simply endure. The core move is symmetry: keep your knees together, sidestep the one-legged and splits-y motions, and lean on a support belt and pelvic PT. It tends to ease after birth. You deserve relief in the meantime, and naming it — to yourself and to your team — is the first step toward getting it.