Hip Dysplasia in Dogs & Cats: Symptoms, X-Ray Diagnosis & Care Guide [2025]
Hip dysplasia is a common hereditary orthopaedic condition in large-breed dogs that causes hip laxity and degenerative joint disease. Treatment ranges from weight management and pain control to total hip replacement, depending on severity.
When to See a Vet
Requires immediate veterinary care (emergency)
- •Hind legs suddenly cannot get up or completely lose the ability to bear weight
- •Persistent severe crying or an obvious expression of pain
- •Unable to urinate or defecate on their own, with signs of distress
Schedule a clinic visit soon (within 24–72 hours)
- •Intermittent limping with a noticeably shortened hind-leg stride
- •Clear signs of discomfort when getting up or jumping
- •Reduced activity, unwilling to run or play
01What signs indicate something is wrong?
Hip dysplasia often causes chronic or intermittent lameness and pain that fluctuates with activity levels and weather. Imaging is usually needed to confirm the diagnosis.
- Lameness in one or both hind legs with a noticeable change in gait
- Increased pain when rising, jumping, or going up and down stairs
- Reduced activity level — no longer interested in running or playing
- Shortened hind-limb stride, trembling or unsteadiness while walking
- Stiffness or restricted movement after cold weather or prolonged rest
- If symptoms persist or worsen, arrange an orthopaedic evaluation promptly
Seek emergency care immediately if you notice the following symptoms:
- ⚠️ Sudden inability to rise or complete loss of weight-bearing in the hind limbs
- ⚠️ Severe pain, continuous crying out, or complete refusal to walk
- ⚠️ Obvious inability to urinate or defecate independently, accompanied by signs of distress
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02How can I assess the situation at home? Key observations and criteria for seeking emergency care
Continuously observing and recording changes in your pet's behaviour and pain levels at home — along with videos and timestamps — is extremely helpful for your vet's assessment.
- Note the date and time symptoms first appeared and when they worsen
- Film your pet walking from the front and side — about 30 seconds each
- Observe and record any changes in appetite, alertness and activity level
- Weigh your pet or estimate weight changes, and log feeding amounts and treats
- Watch for any changes or difficulty with urination or defecation
- If something seems off, book an appointment at a clinic with X-ray capability
03How will the vet diagnose this? Common diagnostic tests
The vet will combine a physical examination with imaging to assess hip joint structure and function, and determine whether further intervention is needed.
Physical examination
assessing joint range of motion, pain location and muscle condition
X-ray
evaluating the shape of the acetabulum and femoral head, and the joint space
CT scan may be arranged when a more detailed assessment of bone and joint structure is needed
Blood and biochemistry panel
evaluating overall health and anaesthetic risk
Urinalysis
ruling out other urinary or metabolic issues
04How is it treated and managed after diagnosis? Medication, dietary adjustments and care guide
Treatment options range from conservative management to surgery, with the focus on pain control, restoration of function and long-term monitoring.
- Conservative management: weight control, environmental modifications and physical rehabilitation
- Medication must be assessed and prescribed by a vet, with regular follow-up visits to monitor response
- Surgical options may be considered for severe structural abnormalities or persistent pain
- Post-operative care includes activity restriction, rehabilitation and monitoring of functional recovery
- Regular check-ups with imaging (e.g. X-ray) to track changes in the joint over time
- Discuss an individualised treatment and rehabilitation plan with an orthopaedic specialist
05What should I prepare before seeing the vet? Key information to help the vet assess quickly
This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.
