Here's Why Your Dog's Nails Keep Splitting

Rachel M.
by Rachel M.

Have you noticed your dog having issues with their nails lately?


Broken or split nails aren’t just uncomfortable for your furry friend, they can also lead to infections if left untreated.


Understanding why it happens is the first step toward keeping your dog’s paws happy and healthy.


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Dog's paws - image via Canva

1. Natural Wear and Tear

Dogs who don’t get enough outdoor activity on hard surfaces can sometimes develop nails that grow too long and weak.


Without that natural filing, nails can become brittle and prone to splitting. Conversely, overly active dogs on rough surfaces can sometimes overdo it, causing accidental cracks.

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2. Nutritional Deficiencies

A dog's diet plays a bigger role in nail health than most people realize. Lack of key nutrients (like biotin, zinc, and omega-3 fatty acids) can make nails dry, brittle, and more likely to split.


Even if your pup seems healthy overall, subtle dietary gaps can show up in their nails.

Dog food bowl - image via Canva

3. Underlying Health Issues

Conditions like hypothyroidism, autoimmune disorders, or fungal infections can weaken nails.


If your dog’s nails are splitting frequently or accompanied by other symptoms, such as hair loss, skin issues, or unusual lethargy, it’s worth checking in with your vet.

4. Injury

Splits often happen after a sudden injury, like catching a nail on a carpet, rough terrain, or even a chew toy. Even minor trauma can cause cracks that, if ignored, can worsen over time.


Get the nail checked out by a vet, especially if there’s any swelling or bleeding on your dog’s paw. 

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5. Nail Care Mistakes

Regular trimming is crucial, but trimming too short or using the wrong tools can cause splits. Many dog owners also forget to file sharp edges after clipping, which leaves nails more prone to splitting.


If you’re unsure how to trim your dog’s nails safely at home, book them in to see a groomer or vet. 

Trimming dog nails - image via Canva

How to Prevent Splitting

  • Regular trims and filing: Keep nails at a healthy length and smooth out rough edges.
  • Balanced diet: Ensure your dog’s diet includes nutrients that support nail strength.
  • Protective gear: Booties can help if your dog walks on lots of harsh surfaces.
  • Vet check-ups: If splits happen often, rule out underlying health issues.

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Final Thoughts

Split nails are uncomfortable for your dog and can lead to infection if left untreated. By paying attention to diet, nail care, and activity, you can easily keep your dog’s paws healthy and happy.


Do you have any other tips to share? Comment below. 


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Rachel M.
Rachel M.

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