A practical guide to what

Quick Assessment

• Is this an emergency?

• Most common cause: pain or instability in the hips or stifles (in young dogs, developmental hip dysplasia; in adults, bilateral cranial cruciate/stifle disease or osteoarthritis).
• When to see a vet: persistent or progressive bunny‑hopping for >48 hours, any neurologic signs (weakness, dragging toes, incontinence), severe pain, or sudden inability to use the hind legs.

What “bunny hopping” looks like

Bunny hopping describes a hindlimb gait in which both hind legs move together in a bounding or hopping motion rather than alternating steps. Owners often notice:

• Short, choppy hindlimb steps with the rear legs leaving the ground together.
• A stiff or stilted rear end, sometimes with a duck‑like sway in the hips.
• The behavior may occur constantly, only when running, turning, rising, climbing stairs, or after rest.
• Puppies may show it intermittently as they learn coordination; persistent or painful bunny‑hopping is abnormal.

Possible causes (ranked by likelihood)

Note: likelihood varies by age, breed, and history.

Sources: Merck Veterinary Manual; American College of Veterinary Surgeons (ACVS).

How causes differ in puppies vs adults

• Puppies (under ~6–12 months): developmental conditions like hip dysplasia, patellar luxation and normal immature gait are most likely. Persistent bunny‑hop in puppies is concerning because developmental joint disease is time‑sensitive for treatment planning.

• Adults (usually >1.5–3 years): degenerative or traumatic conditions predominate — cranial cruciate ligament disease, osteoarthritis of the hips or stifles, and lumbosacral disease. Middle‑aged to older dogs may show progressive changes and muscle wasting.

Decision tree (quick triage)

• If bunny hop + sudden severe hindlimb pain after activity → likely: acute bilateral stifle injury (CCL) or muscle tear → action: restrict movement, see vet within 24–48 hrs.

• If bunny hop + gradual stiffness, worse after rest/morning stiffness → likely: hip dysplasia / hip osteoarthritis → action: schedule vet visit for orthopedic exam and radiographs.

• If bunny hop + back pain, tail weakness, urinary/fecal incontinence, or neurologic deficits → likely: lumbosacral disease/neurologic problem → action: urgent veterinary assessment (same day).

• If puppy with intermittent bunny hop but no pain, normal appetite, and improving coordination → likely: immature gait → action: monitor closely; see vet if persists beyond 2–3 months or if pain develops.

Home assessment steps (what to check and measure)

Record all findings to share with your veterinarian.

When it’s an emergency (red flags)

Seek emergency care immediately if any of these are present:

• Sudden inability to use one or both hind legs, or the dog collapses.
• Loss of tail movement or dragging of the tail.
• New urinary or fecal incontinence.
• Severe vocalizing or intense pain on palpation of the back or hindquarters.
• Fever >103°F (39.4°C) or signs of systemic illness (vomiting, collapse, severe lethargy).

When to schedule a vet visit (non‑urgent but important)

Make an appointment within 24–72 hours if any of the following apply:

• Bunny‑hopping persists or worsens beyond 48 hours.
• You see progressive difficulty rising, climbing stairs, or reduced exercise tolerance.
• Notable muscle wasting in the hindquarters or persistent stiffness after rest.
• Intermittent neurological signs (weakness, toe dragging) or pain on spinal palpation.
• Puppy with persistent hopping beyond the young, uncoordinated stage (generally >3 months of age or not improving).

Home care while you wait

• Limit activity: short leash walks for bathroom breaks only; avoid running, jumping, rough play for at least 1–2 weeks or as directed by your vet.
• Provide a comfortable, padded area to rest and avoid slippery floors (use rugs or non‑slip mats).
• Cold compresses (10–15 minutes, 2–3 times/day) for acute swelling; warm compresses may help chronic stiffness but check with your vet first.
• Do not give human pain relievers — especially ibuprofen, naproxen, or acetaminophen — without veterinary direction. Use only medications prescribed by your veterinarian.
• Weight control: reduce food intake slightly if your dog is overweight — every 1 kg of excess weight increases joint load.
• Assistive devices: a harness or sling can help older dogs rise and climb stairs safely.

What to tell your vet (prepare this information)

Be ready to provide:

• Age, breed, sex, body weight and recent weight changes.
• Exact onset and progression: when you first noticed the hopping, is it constant or intermittent, and has it improved or worsened?
• Any known trauma (falls, jumps), past joint problems, or previous surgeries.
• Videos of the gait (side and rear views while walking and running) — extremely helpful.
• Any other signs: difficulty rising, stairs, reluctance to jump, appetite changes, urinary/fecal changes, fever.
• Home findings: pain when touching hips or spine, temperature reading if taken, and any medications already given.

Final notes — do not self‑diagnose

Bunny‑hopping is a useful symptom that points to hindlimb pain, instability or neurologic problems; the underlying causes vary widely with age and breed. This guide is to help you triage and prepare for a veterinary visit. Definitive diagnosis requires a physical and neurologic exam and often imaging. Prompt veterinary assessment protects function and can prevent worsening pain and degenerative change.

Primary references: Merck Veterinary Manual (Orthopedic and Neurologic chapters); American College of Veterinary Surgeons resources on cranial cruciate disease and hip dysplasia.

Additional resources

• Merck Veterinary Manual — Orthopedic Disorders and Neurologic Disorders
• American College of Veterinary Surgeons (ACVS) — information on hip dysplasia and CCL disease

Frequently Asked Questions