Many dogs don’t exhibit signs of infestation, however, it’s another story when puppies are carrying a heavy worm-load. Other ways that dogs may be infected with roundworms include ingesting eggs from the environment and eating rodents, birds, and other animals that may have roundworms.Īdult roundworms dwell in the intestines of affected dogs. Infestation is highest in puppies because they can get the worms from their mother while they’re still in the womb and from their mother’s milk. Almost all dogs become infected with roundworms at one time or another. The most common species of roundworms that affect dogs are Toxocara canis and Toxascaris leonina. Roundworms are the most common types of parasitic worms living in dogs. Common symptoms include:Ĭommon Intestinal Worms That Affect Dogs Roundworms The symptoms of intestinal parasites will vary depending on the type of worm, the worm load, the health status of the dog, and a variety of other factors.

Symptoms of Intestinal Worm Infection in Dogs It’s highly recommended that you take your dog to your vet at the soonest possible time for proper diagnosis and treatment.

If your dog vomited worms, there is a possibility that there is a heavy intestinal worm infestation. Worms can obstruct the gastrointestinal (GI) tract, which can cause vomiting and/or diarrhea. A heavy intestinal parasite load can cause digestive upsets, leading to vomiting and diarrhea.Ģ.

There are two main reasons why dogs may vomit worms:ġ.

Long flat worms in dogs