TL;DR: Lower back or kidney pain in dogs can signal serious conditions like IVDD or infections; while usually manageable within 24–48 hours, any loss of mobility or difficulty urinating requires immediate emergency care.
What causes lower back or kidney pain in my dog?
Pain in the lower back or kidney area often presents as flinching, yelping, or a hunched posture (kyphosis). This sensitivity can be caused by various conditions, including:
- Intervertebral Disc Disease (IVDD)
- Muscle strains
- Internal issues like kidney infections
- Urinary tract obstructions
How urgent is lower back or kidney pain in dogs?
- Schedule a vet visit within 24 to 48 hours if your dog is still able to walk, eat, and go to the bathroom normally.
- Seek emergency care immediately if your dog is dragging their back legs, is unable to stand, or is struggling to urinate.
How can I use photos or videos to help with my dog's veterinary triage?
Capturing visual documentation can be invaluable for a triage team to differentiate between soft tissue injuries and neurological events. You should:
- Record a short video of your dog’s gait to show how they move.
- Take a photo of your dog’s standing posture to show how they hold their back.
- Check for "knuckling" (walking on the tops of the paws) and include it in your documentation.
- Share these visuals so the clinic can prioritize care and prepare diagnostic tools like digital radiography or ultrasound.
Clinical Context (Merck Veterinary Manual)
Pain upon palpation or extension of the lumbosacral joint is a consistent finding in lumbosacral junction abnormalities. These abnormalities, often detected with ultrasonography, include congenital issues like lumbosacral ankylosis or intervertebral ankylosis, disc degenerative lesions (fissuration, cavitation, mineralization, or ventral herniation), intervertebral malalignment (spondylolisthesis), and intertransverse lumbosacral osteoarthrosis. Acute and severe strain of the sacroiliac ligaments can also cause severe pain in the pelvic or sacroiliac region, often with marked hindlimb lameness, typically associated with a history of injury. In cases of suspected disc extrusion causing lower back pain, spinal radiographs may show narrowing of the affected disc space or radiodense calcified disc material within the vertebral canal, though advanced imaging is often required for definitive diagnosis.
Chapter: Neurology
Source: The Merck Veterinary Manual, 11th Edition (Page 1247)