Disease Guide

Cat Intervertebral Disc Disease (IVDD): Symptoms, MRI/CT Diagnosis & Treatment Guide [2025]

Intervertebral disc disease (IVDD) is less common in cats than in dogs, but can cause hind limb weakness or paralysis. Symptoms may develop acutely or gradually. Treatment ranges from conservative management to surgery, depending on severity.

Last updated: 2026/01/05
Pethealthmap Editorial Team
Sources: ISFM, WSAVA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek Emergency Care Immediately

  • Sudden complete inability to move or stand on hind limbs
  • Persistent inability to urinate or defecate on their own for several hours
  • Signs of altered consciousness or rapid deterioration within a short period

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

  • Noticeable limping but still able to walk short distances
  • Visible flinching or vocalizing when the back is touched
  • Reduced activity level but still partially alert and eating

01What symptoms indicate a problem?

Disc disease commonly causes movement and pain changes related to the spinal cord or nerves, with varied presentations that can sometimes appear suddenly.

  • Unsteady or wobbly gait, prone to stumbling or slipping
  • Limping on one or more limbs, or reluctance to bear weight on a leg
  • Obvious pain response — flinching or crying out — when the back or spine is touched
  • Reduced activity, lethargy, or decreased appetite
  • Possible localised loss of sensation or motor function (e.g. difficulty lifting a leg)
  • If you cannot assess the severity of symptoms, seek a veterinary evaluation as soon as possible

Seek emergency care immediately if you notice the following symptoms:

  • ⚠️ Sudden complete inability to move or stand on the hind limbs
  • ⚠️ Persistent inability to urinate or defecate on their own for several hours
  • ⚠️ Altered consciousness or rapid deterioration within a short period

02How to assess the situation at home? Key observations and when to go to the emergency clinic

Home observations and records help the vet quickly understand the condition and how it has progressed.

  • Note the exact time symptoms began and each subsequent worsening episode
  • Record front- and side-view walking videos on your phone, noting the distance walked
  • Track specific values or frequencies for appetite, water intake, and weight changes
  • Monitor the frequency of urination and defecation, and whether there is difficulty or need for assistance
  • Avoid moving or forcibly carrying your cat to minimise the risk of secondary injury
  • Take videos and arrange a specialist appointment at a clinic with imaging capabilities as soon as possible

03How will the vet make a diagnosis? Common diagnostic tests

The vet will progress from a physical examination to advanced imaging to identify the source of pain and the degree of neurological damage.

Physical and neurological examination

assess reflexes, sensation, and the location of pain

X-ray

initial evaluation of vertebral bone morphology and degenerative changes

CT or MRI

to clarify disc herniation, spinal cord compression, or soft tissue lesions

Blood and biochemistry panel

assess overall health and surgical risk

Referral to a neurology or imaging specialist if required

If spinal cord compression is suspected, evaluation at a specialist hospital with MRI capability is recommended

04How is treatment managed after diagnosis? Medications, adjustments, and care guide

Treatment may be conservative or surgical; both approaches require regular follow-up to monitor functional recovery and potential complications.

  • Conservative management: strict rest with restriction of jumping and vigorous activity
  • The vet will advise on pain relief or anti-inflammatory medications and an observation period based on your cat's condition
  • If surgery is needed, a full pre-operative assessment and risk explanation will be provided first
  • Regular check-ups and functional assessments are required during post-operative or conservative treatment
  • Home care includes gentle rehabilitation, wound care, and avoiding unsupported handling of your cat
  • If there is any deterioration or uncertainty, specialist or neurology follow-up is recommended

05What should I prepare before the vet visit? Key information to help the vet reach a diagnosis quickly

1
Record when symptoms first appeared, their frequency, changes over time, and whether onset was sudden
2
Record front- and side-view walking videos and bring them to the appointment
3
Note specific frequencies and changes in appetite, water intake, and elimination habits
4
Bring a list of all current medications and supplements
5
Bring any existing imaging reports or medical records (if available)
6
Use a secure carrier and call ahead to describe the symptoms and level of urgency

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.

Frequently Asked Questions (FAQ)