Recognizing Pelvic Limb Lameness in Your Dog: How to Tell Which Back Leg Is Hurting

By Steve Mehler, DVM, DACVS

One day your dog is running across the yard.

The next, something just doesn't look right.

Maybe they're limping. Maybe they're "bunny hopping." Maybe they're reluctant to jump into the car. Or perhaps they simply seem slower than they used to be.

Unlike front leg lameness, which often causes obvious head bobbing, hind limb (pelvic limb) lameness can be much more subtle.

Understanding what to look for can help you recognize orthopedic problems earlier and get your dog the treatment they need.

What Is Pelvic Limb Lameness?

Pelvic limb lameness simply means your dog is painful or unable to use one (or both) hind legs normally.

The source of pain can originate from:

• Hip

• Stifle (knee)

• Hock (ankle)

• Paw or toes

• Muscles

• Tendons

• Ligaments

• Bones

• Spine

• Nerves

The challenge is that many of these conditions produce similar-looking gaits.

The Goal of Gait Analysis

When veterinarians watch a dog walk or trot, we aren't simply confirming that the dog is lame.

We're asking several questions:

• Which leg is painful?

• During which phase of the stride does the lameness occur?

• Is the problem orthopedic or neurologic?

• Is the pain located in a joint, muscle, tendon, or bone?

• Is one limb affected—or both?

Every step provides valuable diagnostic information.

Unlike Front Limb Lameness...

Many owners learn the phrase:

"Down on sound. Up on lame."

That's an excellent rule for front leg lameness.

Unfortunately...

There is no equally reliable head-bobbing rule for hind limb lameness.

Instead, veterinarians focus on what the pelvis is doing.

Watch the Hips, Not the Head

One of the most useful things you can do is stop watching your dog's head.

Instead...

Watch the hips.

When viewed from behind during a trot, subtle differences become much easier to appreciate.

Hip Hike (Pelvic Rise)

One of the most important signs of hind limb pain is called a hip hike.

As the painful leg bears weight, the dog lifts that side of the pelvis higher than normal.

Why?

Because lifting the hip reduces the amount of weight placed on the painful limb.

Think of it as the hind limb equivalent of a front limb head bob.

If the right hip rises higher, the right hind leg is often the painful limb.

Shortened Stride Length

Dogs with hind limb pain often take a shorter step with the affected leg.

This is especially common with:

• Cranial cruciate ligament disease

• Hip osteoarthritis

• Iliopsoas injury

• Stifle pain

Rather than fully extending the limb, they quickly place it back on the ground to minimize discomfort.

Reduced Push-Off

Another clue is decreased propulsion.

Watch your dog from behind.

Does one leg seem to push off less forcefully?

Healthy dogs generate nearly equal propulsion from both hind limbs.

Dogs with pain frequently "cheat" by relying more heavily on the opposite leg.

Toe-Touching

Some dogs barely place the affected foot on the ground.

Instead, they'll:

• Lightly touch the toes

• Immediately lift the foot

• Shift weight elsewhere

Toe-touching usually indicates significant discomfort.

Bunny Hopping

Owners often notice both hind legs moving together.

This is called bunny hopping.

It frequently occurs with:

• Hip dysplasia

• Bilateral hip arthritis

• Bilateral cruciate disease

• Lumbosacral disease

Rather than alternating normally, both legs move simultaneously because it's more comfortable.

Sitting Abnormally

Healthy dogs usually sit squarely.

Dogs with pelvic limb pain may:

• Sit with one leg kicked out

• Lean to one side

• Avoid fully flexing one knee

• Constantly reposition themselves

Although subtle, this can be an early sign of orthopedic disease.

Difficulty Standing

Owners often describe:

"Once he's up, he walks okay."

Difficulty rising commonly occurs with:

• Hip arthritis

• Cranial cruciate ligament disease

• Muscle weakness

• Neurologic disease

The transition from sitting to standing requires considerable strength and joint stability.

Difficulty Jumping

One of the earliest signs of hind limb pain is avoiding activities the dog previously enjoyed.

Examples include:

• Jumping into the car

• Climbing stairs

• Jumping onto furniture

• Playing fetch

Many owners mistakenly assume their dog is "just getting older."

Often, they're actually painful.

Muscle Loss

Chronic lameness leads to muscle atrophy.

Compare both thighs.

Does one side appear smaller?

Muscle loss is one of the strongest indicators that a limb has been painful for some time.

Common Causes of Pelvic Limb Lameness

Cranial Cruciate Ligament Disease

The most common orthopedic disease affecting the canine hind limb.

Typical signs:

• Sudden lameness

• Toe-touching

• Difficulty rising

• Sitting abnormally

• Muscle loss

Hip Dysplasia

Often begins during puppyhood but becomes more obvious with age.

Signs include:

• Bunny hopping

• Reluctance to jump

• Difficulty standing

• Stiffness after exercise

Osteoarthritis

Arthritis can affect:

• Hips

• Knees

• Hocks

• Toes

Signs often develop gradually over months or years.

Luxating Patella

Common in small breeds.

Owners often describe:

"He skips a few steps... then walks normally again."

Iliopsoas Injury

Frequently affects athletic dogs.

Pain is often worse:

• After running

• During stretching

• While accelerating

Neurologic Disease

Not every hind limb problem is orthopedic.

Neurologic disorders can produce:

• Knuckling

• Scuffing nails

• Crossing limbs

• Weakness

• Incoordination

This is why a neurologic examination is often performed alongside the orthopedic examination.

Why Veterinarians Prefer the Trot

Walking can hide subtle lameness.

Trotting exaggerates asymmetries because:

• Forces increase

• The gait becomes more symmetrical

• Compensation becomes easier to identify

Whenever possible, veterinarians evaluate both the walk and the trot.

Recording Videos at Home

One of the most helpful things you can do before your appointment is record your dog.

Try to capture:

✅ Walking away from the camera

✅ Walking toward the camera

✅ Trotting away

✅ Trotting toward

✅ Side views

Use a flat, non-slip surface and avoid retractable leashes.

Slow-motion video is especially valuable.

Many subtle abnormalities become obvious only when viewed frame by frame.

What You Shouldn't Do

Don't try to diagnose the problem based on gait alone.

Many different diseases produce similar movement patterns.

For example:

A dog with hip dysplasia may appear similar to one with a cruciate ligament tear.

Likewise, arthritis, muscle injuries, tendon injuries, and neurologic diseases can all cause comparable gait changes.

Gait analysis helps localize the problem—but rarely provides the complete diagnosis.

When Should You See Your Veterinarian?

Schedule an examination if your dog:

• Limps for more than 24–48 hours

• Refuses to bear weight

• Cries when walking

• Has swelling around a joint

• Stops exercising

• Has difficulty rising

• Frequently slips or falls

• Develops muscle loss

Early diagnosis often leads to simpler treatment and better long-term outcomes.

The Bottom Line

Recognizing pelvic limb lameness isn't as straightforward as spotting a front limb head bob, but there are several clues that can help. Watching your dog's hips instead of their head, looking for a hip hike, shortened stride, reduced push-off, toe-touching, bunny hopping, or difficulty rising can reveal that something is wrong long before the problem becomes severe.

While these observations can help you recognize that your dog may be painful, they are only the first step. A complete orthopedic and neurologic examination—often combined with imaging such as X-rays, ultrasound, CT, or MRI—is needed to determine the exact cause.

The earlier hind limb lameness is recognized, the more treatment options are available, helping your dog stay active, comfortable, and mobile for years to come.