Can hookworm be fatal to dogs?

Hookworms are a serious threat to dogs, especially young puppies. They can cause blood loss, weight loss, diarrhea or death. Hookworms live in your dog's digestive system. They must be diagnosed by your veterinarian.

What happens if hookworms go untreated in dogs?

Hookworms are intestinal parasites that cause anemia in dogs and can be fatal in puppies if left untreated. Several different kinds of hookworms can affect dogs. They are very small (about 1/8 of an inch) but ingest large amounts of blood when they attach to the dog's intestinal wall.