Intervertebral Disc Disease (IVDD) in Dogs and Cats

Intervertebral disc disease

A neurological condition affecting dogs (and occasionally cats) in which the cushioning discs between the vertebrae bulge or rupture into the spinal canal, compressing the spinal cord. Also known as a slipped, herniated, or bulging disc. It’s especially common in chondrodystrophic (“long-back, short-leg”) breeds.

Symptoms

  • Reluctance to jump, climb stairs, or move normally
  • Yelping or signs of pain when touched or picked up
  • Hunched back or lowered head
  • Wobbly or uncoordinated gait (ataxia)
  • Weakness or dragging of the hind limbs
  • Loss of bladder or bowel control
  • In severe cases, complete paralysis

Causes

  • Hansen Type I: sudden herniation of a hardened, degenerated disc, often triggered by a jump or sudden movement — most common in chondrodystrophic breeds like Dachshunds, Corgis, Basset Hounds, French Bulldogs, and Shih Tzus
  • Hansen Type II: slow, age-related degeneration and bulging of the disc — more common in larger breeds like German Shepherds and Labrador Retrievers
  • Genetic predisposition tied to breed and cartilage development
  • General wear and aging of the spine

Treatments

  • Mild cases: strict crate rest, anti-inflammatory medication, and pain control, often for several weeks
  • Moderate to severe cases: surgery (such as a hemilaminectomy) to remove the herniated disc material and relieve spinal cord pressure
  • Physical rehabilitation to support recovery and mobility
  • Early intervention significantly improves outcomes, especially in dogs that still have sensation in their limbs

This condition is common in the following Dogs & Cats

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