Why Is My Dog Walking Sideways All of a Sudden?

A dog who starts to walk crooked may have neurological problems, pain, a tumor, or an injury.

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If your dog is walking crooked, or recently developed an abnormal walk, your dog may be showing signs of neurological problems. Suddenly walking sideways can indicate other health issues as well, but the bottom line is that if your dog has started stumbling, dragging his feet, circling, or walking crooked, it is time for a veterinary visit.

Causes for Crooked Gaits

If your dog has always walked kind of crooked or it came on gradually in a young pup, it could indicate a bone or joint abnormality. Nutritional deficiencies can lead to weak or malformed bones, which may change how your dog walks as he grows up.

And conditions like severe hip dysplasia can be extremely uncomfortable, causing your dog to walk abnormally to relieve pain. It could even be due to weakness in the hind end.

For adult dogs who suddenly start walking crooked or gradually worsen, other conditions like neurological problems are more likely. These include:

  • Vestibular disease (like doggie vertigo or “dizziness”)
  • Inner ear infections
  • Traumatic injury
  • Seizure
  • Brain tumor
  • Inflammation or infection in the brain
  • Large tumor near a leg preventing normal movement
  • Stroke

Sudden Changes in How Dog Walks

Your veterinarian will start by doing a thorough physical exam, including feeling your dog’s legs and joints and testing some basic reflexes, such as fixing her foot if your veterinarian places it upside down. The ears will be checked for signs of infection.

Blood tests can help to reveal if your dog has an infection or organ damage that may have caused a seizure or stroke. Radiographs (X-rays) and ultrasound might be used to look for problems in your dog’s bones, heart, lungs, and abdominal organs.

If a brain issue is suspected, your dog will probably be referred to a neurologist for a full neurologic exam and advanced imaging such as an MRI. An MRI will show if there is a brain tumor and can also show signs of strokes, inflammation, trauma, or infection.

Signs of Neurological Problems in Dogs

Walking sideways is just one sign of a neurological issue in dogs. Other signs that can indicate a neurological problem include:

  • Stumbling
  • Circling
  • Head pressing against walls or other objects
  • Dragging feet
  • Paralysis of one or more legs
  • Seizures
  • Sudden blindness
  • Tremors
  • Head tilt or head shaking

If your dog is experiencing one or more of these symptoms, he should see his veterinarian as soon as possible.

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Kate Basedow, LVT is a long-time dog enthusiast. She grew up training and showing dogs, and is active in a variety of dog sports. She earned her Bachelors Degree in English from Cornell University in 2013, and became a licensed veterinary technician in New York in 2017. She has been writing professionally about dogs for most of her life, and has earned multiple awards from the Dog Writers' Association of America. Kate currently has three dogs at home, as well as a cat, two zebra finches, and six ducks.