Hookworms, whipworms,

Get smart about hookworms, whipworms, and roundworms.


  • Female hookworms can lay up to 30,000 eggs per day1
  • Hookworm larvae can be ingested or absorbed through the skin2
  • Once inside, they feed on your dog’s blood and pass eggs back into the environment through your pet’s feces2
  • Signs include dark, tarry stool, weight loss, and anemia2
  • Puppies are especially at risk and can get hookworms from their mothers, either before birth or while nursing2


  • One of the most common intestinal parasites in dogs, and rates are on the rise3
  • Infected eggs are passed in feces and can survive in soil for years4
  • Detecting and diagnosing whipworm infections can be difficult4
  • Many infected dogs don’t show signs and go undiagnosed and untreated4
  • Signs of a severe infection are bloody diarrhea, anemia, weight loss, and dehydration4
  • Whipworm infections can be deadly if they progress too far4


  • The most common type of worms found in dogs5
  • Easily spread and hard to control
    • Puppies can get roundworms from their mothers6
    • Adult dogs can pick them up from the soil and from infected animals, such as mice6
  • Signs include diarrhea, vomiting, stunted growth, rough coat, and bloated belly6




1. Wertheim HF, Horby P, Woodall JP. Disease: hookworms. In: Wertheim HF, Horby P, Woodall JP, eds. Atlas of Human Infectious Diseases. West Sussex, England: Wiley-Blackwell; 2012:153.
2. Hookworms. Accessed November 6, 2015.
3. Banfield Pet Hospital State of Pet Health 2011 Report. Banfield Pet Hospital Website. Vol. 1.
4. Whipworms. Accessed November 6, 2015.
5. Roundworms. Pets & Parasites website. Accessed November 4, 2015.
6. Ascarid (also Roundworm, also Toxocara). Accessed November 6, 2015.