Everything You Need to Know About Worms in Dogs

vet holding dog
Reading Time: 4 minutes


Most worm infections cause mild to moderate symptoms. However, certain worms, like heartworm, can be very serious.

Table of Content

Key points

  • Dogs can have worms without showing any symptoms.
  • Intestinal worms can cause symptoms like vomiting, diarrhea, weight loss, lethargy, and a dull coat.
  • Heartworm is transmitted by mosquitos and can cause severe symptoms like coughing, breathing distress, and collapse.
  • Your veterinarian can test for worms using a feces sample or a blood sample.
  • Your veterinarian will use the results of worm egg counts to select the most appropriate dewormer for your dog.

Common in

Symptoms & types

Many dogs have small numbers of worms without showing any signs.

Understanding the diagnostics

You might assume that if you can't see worms in your dog's poop, they don't have any. Actually, though, it’s not that easy to diagnose worms.

Learning About The Causes

It's impossible to remove the threat of worms altogether.

Best Treatment Options



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