Overview
Hip dysplasia is a condition in which the hip socket (acetabulum) and/or the ball of the thigh bone (femoral head) do not form normally, leaving the joint less stable and less well covered. This instability increases stress on the labrum and cartilage, which can lead to pain, stiffness, weakness, and a higher risk of developing early hip osteoarthritis. In babies and children, it may present as loose or unstable hip alignment, while in adults it often shows up as "residual" dysplasia with long-term joint overload. Proper evaluation helps determine severity and guide the right non-surgical plan.
Symptoms
Symptoms commonly include pain in the groin, front of the hip, buttock, or outer hip, especially with walking, standing, climbing stairs, running, or prolonged sitting. Many people notice a limp, reduced hip range of motion, hip "clicking" or a sense of catching, and difficulty with activities that require hip stability such as cutting or getting up from a low chair. In children, signs may include uneven leg lengths, limited hip abduction, asymmetrical skin folds, or delayed motor development. Some patients feel instability or a "giving way" sensation rather than constant pain.
Causes
Hip dysplasia develops when the hip joint does not form with adequate coverage and alignment, leading to subluxation (partial displacement) or instability. In infants, contributing factors can include abnormal positioning in the womb, which affects how the joint shapes during development, along with genetics and connective tissue differences. Over time, abnormal mechanics can cause damage to the labrum and cartilage, perpetuating pain and stiffness.
Risk Factors
Hip dysplasia is more likely in females, and family history increases risk because genetic factors can play a role. Breech positioning and other situations that limit fetal movement can contribute to improper hip development. Firstborn status is sometimes associated with tighter space in the womb, and ligamentous laxity may increase susceptibility.
Prevention
Because hip dysplasia often starts during development, prevention focuses on hip-healthy positioning in infancy and early detection through screening where recommended. Avoiding tight swaddling that keeps hips together and straight (adducted and extended) can help support safer hip positioning. For people diagnosed later (children or adults), strengthening the hip abductors and maintaining a healthy weight can help reduce joint overload and symptom flares.
How the Diagnosis Is Evaluated
Clinicians start with a history of pain, stiffness, limping, or instability, including when symptoms began and whether there is a childhood history of hip concerns. A physical examination assesses hip stability and range of motion and, in infants, may include maneuvers to check for dislocation or instability plus asymmetry findings. Imaging is tailored to age: ultrasound is commonly used in young infants, while X-rays are used in older children and adults. Additional imaging such as MRI or CT may be considered to define labral/cartilage damage and measure dysplasia severity, but not every patient needs advanced scans.
Nonsurgical Treatment Options
Non-surgical care focuses on reducing pain while improving hip stability and function without relying on surgery as the first step. Physical therapy is a cornerstone and typically targets strengthening of the hip abductors, gluteal muscles, core stability, and movement mechanics to improve joint loading. Activity modification and short-term use of assistive devices can reduce flare-ups, and anti-inflammatory medications such as NSAIDs may help manage symptoms. For persistent pain from associated joint irritation, clinicians sometimes use corticosteroid injections; platelet rich plasma (PRP) injections may be considered in selected cases; and hyaluronic acid injections such as orthovisc are sometimes used for symptomatic relief in degenerative or cartilage-irritated joints. In infants, bracing with a Pavlik harness may be used when dysplasia is detected early to promote proper positioning and development. Experimental options like trigger point injections for muscle pain, as well as adipose allograft or stem cell injections, are not standard treatments and should only be discussed in the context of specialist guidance and realistic expectations.
When to Seek Medical Attention
Seek prompt medical attention if you cannot bear weight, have rapidly worsening hip pain, or notice a sudden loss of function or severe instability. Children with suspected hip dysplasia should be evaluated urgently if there is marked asymmetry, a significant change in walking pattern, or concerns about delayed milestones. Get urgent care if pain is accompanied by fever, major swelling/redness, or new numbness or weakness, especially if symptoms are progressing quickly.
Frequently Asked Questions
Yes, inadequate hip joint coverage and stability can increase cartilage and labral stress over time, raising the risk of developing hip osteoarthritis.
Physical therapy to improve hip stability, activity modification, pain control, and in some cases injections can significantly improve symptoms even though they do not change the underlying bone shape.
Next Steps
If you suspect hip dysplasia or have groin/hip pain with limping or instability, schedule an evaluation with an orthopedic clinician to confirm the diagnosis and determine severity. Ask whether your situation is appropriate for targeted physical therapy, pain management, and (if needed) image-guided injections. If symptoms worsen or you develop trouble bearing weight, seek prompt medical care.