What are the common symptoms of thoracolumbar disc disease?

Common signs include back pain, reduced mobility, reluctance to jump or climb stairs, hindlimb weakness, or toileting changes. Severe cases may be unable to stand or may lose bladder control. Veterinary care is recommended if signs clearly worsen.

What tests will the vet use to confirm the condition?

Vets usually start with a physical and neurological examination, and may use X-rays to rule out bony problems. CT or MRI is often needed to confirm disc disease or nerve compression, alongside blood and urine tests to assess overall health.

How long does it take to return to normal activity after treatment?

Recovery time depends on the severity and treatment approach. Conservative treatment may take weeks to months, while surgical cases often need several weeks of hospital monitoring and months of gradual rehabilitation. Follow your vet's assessment and recheck plan.

How much do the tests and treatment usually cost?

Costs vary by clinic and region — ask your vet for an estimate before proceeding.

Disease Guide

Thoracolumbar Disc Disease in Dogs and Cats: Back Pain, Gait Changes, Imaging & Care [2025]

Thoracolumbar intervertebral disc herniation can cause hindlimb weakness and even paralysis. It is common in chondrodystrophic breeds such as Dachshunds. Cases are graded from one to five, with higher grades being more severe. Timely surgical decompression is key to preserving nerve function.

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap Editorial Team

Sources: AAHA, WSAVA, National Taiwan University Veterinary Teaching Hospital

When to See a Vet

Seek immediate emergency care

•Sudden paralysis of the hind limbs with inability to stand
•Loss of bladder control or inability to urinate for an extended period
•Obvious difficulty breathing or altered level of consciousness

Schedule a clinic visit soon (within 24–72 hours)

•Noticeably reduced mobility but still able to walk short distances
•Repeated yelping or resisting touch during movement
•Decreased appetite or changes in water intake accompanied by weight loss

01What symptoms suggest something is wrong?

Thoracolumbar disc disease usually presents with back pain and changes in movement. Some affected dogs and cats may also show changes in heart rate or breathing, as well as toileting abnormalities. Signs can range from mild discomfort to clear neurological impairment.

Obvious pain response or yelping during activity
Reduced mobility, reluctance to jump or climb stairs
Stiff posture or curling up tightly while resting
Faster heart rate or increased breathing rate
Changes in toileting habits or difficulty urinating or passing stools

Seek emergency care immediately if you notice the following symptoms:

⚠️ Sudden hindlimb collapse or complete inability to move
⚠️ Loss of bladder control or no urination for an extended period
⚠️ Obvious breathing difficulty or altered consciousness

02How can you assess changes at home? Key observations and when to seek emergency care

Observing and recording a few key details at home can help your vet understand how the condition is progressing and assess how urgent it is.

Record when the signs first appeared and how they have changed
Track appetite and water intake each day
Observe and note changes in toileting frequency and stool or urine appearance
Take short videos showing walking, jumping, and resting posture
Weigh your pet daily and record the trend for your vet
Bring these notes and videos to the appointment for your vet to review

03How will the vet diagnose it? Common tests

Veterinary assessment mainly involves a physical examination and diagnostic imaging, with blood and urine tests added when needed to understand your pet's overall health.

A full physical examination and neurological assessment to localise the lesion

Blood and urine tests to assess overall health and anaesthetic risk

X-rays as an initial screen for bone problems or other disease

CT to assess bony structures and details of complex lesions

MRI as the preferred imaging test for assessing disc disease and nerve compression

04How is it treated and managed after diagnosis? Medication, activity changes, and care guidance

Treatment ranges from conservative medication to surgery. During recovery after surgery or conservative treatment, strict activity restriction, regular rechecks, and rehabilitation are often needed.

Pain relief or anti-inflammatory medication to control pain and inflammation
Severe cases or pets with neurological impairment may need decompression surgery
Hospitalisation can help with pain control and neurological monitoring
Strict activity restriction and avoiding jumping are needed after surgery or during conservative treatment
Schedule rechecks as advised to monitor neurological function and imaging changes
If the condition worsens or acute changes occur, referral to a specialist hospital should be arranged promptly

05What should you prepare before seeing the vet? Key details that help clarify the cause

Write down when signs started and how they change each day

List all current and previous medications or supplements

Bring a brief record of diet and toileting for your vet to review

Record short videos showing the abnormal gait, jumping difficulty, or pain response

Bring any previous imaging or test reports, if available, for comparison

Call ahead before the visit to confirm whether neurological imaging or a specialist appointment can be arranged

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.

Related Symptoms (You May Also Be Looking For)

Urinary Incontinence

Involuntary urination

Dilated pupils

Hindlimb weakness

Partial paralysis

Abnormally rapid heart rate