What Causes a Dog to Arch Its Back?

Dog Arched Back πŸ“… August 7, 2026 πŸ‘ 1172

πŸ“ Summary

What causes a dog to arch its back? There are many reasons a dog arches its back, but it certainly means the dog is uncomfortable. Find the cause and treat it promptly. Our pet care specialists explain the causes and solutions.

1 Reasons Behind a Dog’s Arched Back

1. Causes of a dog arching its back

1) Parasite infection: Internal parasites can cause the arched back. If the owner rarely deworms the dog, parasites multiply and wriggle in the belly, making the dog uncomfortable and arch to relieve it.

2) Joint problems: Arthritis or a herniated disc can also cause arching, raising the risk of fractures and other joint diseases. Dogs with joint disease won’t let you hold or touch their back, this is usually from severe calcium deficiency.

3) Malnutrition: Lack of nutrients can also cause arching, for example a single-food diet over time leads to calcium or trace-element deficiency and deformity.

4) Rickets: Severe arching is rickets, a mineral metabolism disorder, with causes similar to malnutrition, vitamin deficiency or metabolic disorder causing bone malnutrition.

2. What to do about a dog’s arched back?

If parasites cause it, deworm the dog promptly using an ivermectin topical solution, and keep the living space clean to avoid parasite growth.

For rickets or malnutrition, adjust the diet for balanced nutrition, beyond kibble, add energy-rich foods with vitamins, trace elements, and protein.

For joint disease, supply the joints with nutrients for self-repair, glucosamine is key, and chondroitin sulfate helps achieve better repair.

Note: A dog may also arch its back from overgrown nails or long confinement in a crate. Watch your dog’s condition and act on anything unusual.

Want to learn more about pet health?

Explore our pet health channel for more science-based care guides

Read More Articles β†’