Hip Dysplasia in Adults: Symptoms, Treatment & Hip Replacement
Hip dysplasia means the hip is shaped in a way that loads it unevenly, most often a shallow socket. Many adults don’t learn they have it until their hip starts hurting in their 20s, 30s, or 40s. Here’s what it feels like, what the options are, and why, for most adults with pain and arthritis, a hip replacement is the most reliable answer.
Key takeaways
- Hip dysplasia is a problem with the shape of the hip, most often a shallow socket that doesn’t cover the ball well.
- You don’t develop the shape as an adult, but many people don’t find out until adulthood, when the hip starts to hurt.
- A hip scope usually doesn’t fix it, because the shape of the hip, not the labrum, is the problem.
- I try to avoid a PAO (reshaping the socket) except in very young patients.
- For most adults with pain and arthritis, a hip replacement fixes the shape problem directly, and most can be done through the direct anterior approach.
Many adults with hip dysplasia spend years being told they’re too young for hip problems. Then an X-ray finally shows the reason: the hip is shaped in a way that has been loading it unevenly for decades. Here’s what that means, what it feels like, and how I approach treatment.
What hip dysplasia is
The hip is a ball and socket. In hip dysplasia, they aren’t shaped or positioned the way they should be. Most often in adults, the socket is too shallow and doesn’t cover the ball well. That concentrates your body weight on a smaller area of cartilage, and over the years it wears out sooner, leading to hip arthritis earlier than usual.
Can you develop hip dysplasia as an adult?
The shape of the hip is set in childhood, so you don’t develop dysplasia as an adult. But mild dysplasia is easy to miss in a child, and many people don’t find out until adulthood, when the uneven loading starts to cause pain. That often happens in the 20s, 30s, or 40s, sometimes after a pregnancy, weight gain, or a jump in activity.
Symptoms in adults
- Deep groin or front-of-hip pain, usually building gradually.
- Pain with walking, standing, or sports.
- Clicking or catching, often from a torn labrum.
- A feeling that the hip may give way.
- Stiffness and a limp as arthritis develops.
The different forms
- DDH (developmental dysplasia of the hip): a shallow socket, sometimes treated in infancy, sometimes never diagnosed.
- Perthes: a childhood condition that can leave the ball of the hip flattened or enlarged.
- Impingement (FAI): extra bone on the ball or socket that pinches the joint. It can occur alongside dysplasia; see hip impingement.
Many hips have more than one of these.
How it’s diagnosed
Standing X-rays show the shape of the socket and ball, and whether arthritis has started. An MRI shows the labrum and cartilage. Together with how the hip is affecting your life, that tells us which stage you’re in.
Stages and what I recommend
| Stage | What imaging shows | What I usually recommend |
|---|---|---|
| Dysplasia, no arthritis | A shallow socket or misshapen ball, with the joint space still healthy. | Treat without surgery first. A PAO only for the very young, in select cases. |
| Dysplasia with early arthritis | Early narrowing of the joint space, sometimes a labral tear on MRI. | Therapy and ultrasound-guided injections to push things down the road. When pain limits your life, a hip replacement is usually the better operation than a scope. |
| Dysplasia with advanced arthritis | The joint space is gone, often with bone spurs and a flattened ball. | Hip replacement. |
When you’re not ready for surgery, I use physical therapy, activity changes, and ultrasound-guided cortisone injections into the hip, done in my office, to push things down the road.
My view on PAO
A periacetabular osteotomy (PAO) cuts the pelvic bone around the socket and turns it to cover the ball better. It’s a big operation. I try to avoid it unless the patient is very young. I’ve seen patients go through a PAO, not get a good result, and still need a hip replacement.
A hip replacement is a much less invasive surgery and does very well. When I can, I help younger patients manage their hip until they’re past that very young age, and then do a hip replacement instead.
Labral tears and hip scopes
Many patients with dysplasia are told they have a labral tear and are offered a hip scope (arthroscopy) to repair it. In a dysplastic hip, the labrum tears because of the shape of the hip. Repairing the labrum doesn’t change the shape, so a scope often doesn’t solve the problem.
A scope may help in select cases of very mild dysplasia or mild impingement with a labral tear. But with pain and early arthritis, even mild, a hip replacement is usually the better operation. Research points the same way, and in my practice I find that’s usually the case.
One surgery, not two
What I most want to help patients avoid is a long scope recovery, often close to a year, followed by a hip replacement anyway. The replacement is harder after that, and the patient would have been better off having it from the beginning.
Hip replacement for dysplasia
A hip replacement fixes the shape problem directly: the worn ball and socket are replaced with new parts positioned where they should be.
- Direct anterior for most. I do the majority of dysplastic hip replacements through the direct anterior approach. Very severe dysplasia may need a different approach.
- The same recovery. Patients follow the same recovery pathway as any of my hip replacements: up and walking the day of surgery, and many go home the same day.
- Severe cases can be treated. Even very shallow or previously dislocated hips can be reconstructed. It depends on the severity, and I’m open to treating them.
- Built to last. Modern hip replacements can last 30 years or more. See how long a hip replacement lasts.
Worried about your age? See am I too young for a hip or knee replacement?
What patients commonly tell me
“I was treated for hip dysplasia as a baby. They said I’d have arthritis someday.”
“I was told I have a labral tear, and the scope didn’t help.”
“My hip has hurt for years. They finally told me it’s dysplasia.”
“I’m only 40. Do I really need a hip replacement?”
If any of that sounds familiar, bring your X-rays and MRI, and we’ll look at your hip together. I see patients in Washington, D.C. and Germantown, Maryland. Request an appointment.
Frequently asked questions
Can you develop hip dysplasia as an adult?
The shape of the hip is set in childhood, so you don’t develop dysplasia as an adult. But mild dysplasia often goes unnoticed until adulthood, when years of uneven loading start to cause pain, often in the 20s, 30s, or 40s.
What are the symptoms of hip dysplasia in adults?
Deep groin or front-of-hip pain, pain with walking or standing, clicking or catching, a feeling that the hip may give way, and, as arthritis develops, stiffness and a limp.
What is the treatment for hip dysplasia in adults?
It depends on the stage and how much the hip limits your life. Without arthritis, I start with treatment that doesn’t involve surgery. With early arthritis, therapy and ultrasound-guided injections can push things down the road. When pain limits your life, a hip replacement is usually the most reliable operation.
Will a hip scope fix a labral tear caused by dysplasia?
Usually not. In a dysplastic hip, the labrum tears because of the shape of the hip. Repairing the labrum doesn’t change the shape, so the problem often continues. A scope may help in select cases of very mild dysplasia, but for most adults with pain and early arthritis, a hip replacement is the better operation.
Should I have a PAO or a hip replacement?
A PAO (periacetabular osteotomy) reshapes the socket by cutting and turning the pelvic bone. I reserve it for very young patients, because if it doesn’t work, you may still need a hip replacement. For most adults, a hip replacement is less invasive and more predictable.
Can a dysplastic hip be replaced through the direct anterior approach?
Yes, in most cases. I do most dysplastic hip replacements through the direct anterior approach, with the same recovery pathway as any other hip replacement. Very severe dysplasia may need a different approach, and those hips can be treated too.
I was treated for hip dysplasia as a baby. Will I have problems as an adult?
Treatment as a baby gives the hip the best start, but some of these hips still develop pain and arthritis earlier than usual. If your hip hurts, it’s worth an exam and X-rays.
References
This article is for general education and is not a substitute for personalized medical advice. Please consult Matthew Harb, M.D. about your specific condition.
What patients say
“A really smooth operation — I was discharged the same day and basically able to walk easily within a day.”
“A world-class orthopedic surgeon who performed flawless hip replacement surgery on me. Life changer, and forever thankful.”
“No more pain — I was moving around and driving within two weeks, and back at work at two months.”
Where to go from here
Direct Anterior Hip Replacement: A Surgeon’s Guide
The direct anterior approach reaches the hip through a natural plane between the muscles, rather than detaching them. For the right patient, that muscle-sparing technique can mean a more comfortable early recovery and a lower dislocation risk profile. Here is an honest look at what it is, why many patients value it, and who it suits best.
Read articleHip ReplacementAm I Too Young for a Hip or Knee Replacement?
One of the most common questions I hear is whether someone is too young — or too old — for a hip or knee replacement. The answer surprises many patients: the decision is rarely about age at all. It’s about how much arthritis is affecting your life, your overall health, and whether conservative treatments still help.
Read articleHip ReplacementSigns You May Need a Hip Replacement
Most people with hip arthritis don’t need surgery any time soon — and surgery is rarely the first step. But it helps to recognize when arthritis is genuinely limiting your life, because with a hip replacement, you largely decide when it’s time. The decision is driven by your pain, function, and quality of life — not by an X-ray.
Read articleWondering what’s causing your hip or knee pain?
Schedule an evaluation with Dr. Harb to understand your diagnosis and build a plan — from nonsurgical care to replacement, when the time is right.
Not ready to book? Read how to choose a hip or knee surgeon