What are the common early signs of discospondylitis?

Common early signs include reduced appetite, fever, unsteady walking or lameness, and pain when touched or picked up. If hind limb weakness or changes in urination or defecation appear, seek veterinary assessment promptly.

What tests will the vet run to confirm discospondylitis?

The vet will typically start with a physical and neurological examination, followed by blood tests, urinalysis, and X-rays. CT or MRI and cerebrospinal fluid or discharge culture may be needed to confirm the infection and its extent.

How long does treatment and follow-up take for discospondylitis?

Treatment duration varies with infection severity and the causative organism; antibiotic courses of several weeks to months are common, alongside regular imaging and blood test monitoring. Follow your vet's individualised plan.

What observations can I make at home to help the vet?

Record when symptoms began, measure body temperature, note appetite and elimination patterns, and film front-on and side views of your pet walking. This information helps the vet assess severity and plan appropriate tests.

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

Discospondylitis in Dogs & Cats: Symptoms, Imaging & Care Guide [2025]

Discospondylitis is an infection of the intervertebral disc and adjacent vertebral bodies, usually caused by bacteria. Signs include back pain, fever, and neurological symptoms. Long-term antibiotic treatment is required, and surgery may be needed in severe cases.

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap Editorial Team

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

When to See a Vet

Seek Emergency Care Immediately

•Sudden paralysis of the hind limbs with complete inability to move
•Unable to urinate or defecate without assistance
•Persistent high fever with extreme lethargy and unresponsiveness

Schedule a Clinic Visit Soon (within 24–72 hours)

•Noticeably reduced appetite for more than one day with otherwise normal alertness
•Unsteady gait or intermittent limping
•Visibly flinches or cries out when touched or picked up

01What symptoms signal a problem?

Disc or spinal infection (discospondylitis) in dogs and cats often presents as pain, changes in mobility, and systemic signs — and some cases can deteriorate rapidly.

Noticeably reduced appetite or refusal to eat for more than a day
Persistent weight loss or noticeable thinning over a short period
Fever accompanied by depression or lethargy
Unsteady gait or obvious lameness while walking
Yelping or flinching when picked up or when a specific area is touched
Weakness in one or more limbs, affecting daily activity and ability to jump

Seek emergency care immediately if you notice the following symptoms:

⚠️ Sudden hind limb collapse or complete inability to move
⚠️ Unable to urinate or defecate without assistance
⚠️ High fever that won't break, with extreme lethargy and unresponsiveness

02How can I assess what's wrong at home? Key observations and emergency red flags

Observing and recording key information at home helps your vet quickly understand how the condition is evolving and prioritise care.

Log when symptoms started and how they change each day (include timestamps)
Weigh your pet daily and note the trend and date of any weight change
Measure and record body temperature (method, reading, and time)
Film a short video of your pet walking — capture both front-on and side views
Note changes in alertness and energy levels, with specific times and examples
Record urination and defecation frequency, consistency, and any abnormalities
Bring all records and videos to a specialist clinic that can perform MRI or CT

03How will the vet diagnose this? Common tests and procedures

Once at the clinic, the vet will systematically assess neurological and infection status, then use imaging and lab tests to confirm the cause and extent of the disease.

Physical and neurological examination

assessing pain location, reflexes, and nerve function

Blood and urine tests

screening for infection markers and concurrent medical conditions

X-rays

initial assessment of vertebral bodies, intervertebral discs, and bony changes

CT or MRI

detailed evaluation of spinal cord compression, disc involvement, and infection extent

Cerebrospinal fluid or discharge culture

identifying the causative organism to guide antibiotic selection

04What treatment and care are needed after diagnosis? Medication, diet, and home care guide

Treatment typically involves antimicrobial therapy and pain management, with regular clinical and imaging follow-up to assess response.

Use appropriate antibiotics based on culture results and your vet's guidance, adjusting the course as needed
Pain management and restricted activity to promote spinal stability and healing
Specialist evaluation for surgical intervention if necessary
Regular recheck visits to monitor clinical signs and neurological function
Follow-up blood tests and imaging as directed to confirm infection control
Diet and weight management to reduce spinal load and support recovery

05What should I prepare before the vet visit? Key information to help your vet make a faster diagnosis

Note when symptoms started, how they progressed, and how severe they are

List all current medications, supplements, and doses (if any)

Bring videos of your pet walking or during an episode, and photos of any affected areas

Prepare a record of elimination habits (frequency, volume, and stool/urine consistency)

If previous imaging or reports exist, bring the files or printed copies

Use a secure carrier and book in advance at a specialist clinic that offers MRI or CT

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.