Roundworms typically attach themselves to the walls of your dog’s intestines and get nutrients from the partially digested food in your dog’s gut. However, it is possible for some roundworms to burrow their way through the intestines and infect other body organs and tissues.
Hookworms are short worms that attach to your dog’s intestines and feed off the dog’s blood. They have small teeth that they use to attach themselves to the intestines. Due to their feeding method – sucking blood from the intestines – hookworms can be very dangerous, especially in young puppies.
This type of worm is a lot less dangerous than the others discussed in this article. They live in the colon and do not generally cause much problem to your dog, unless they happen to burrow into intestinal tissue. It is very difficult to know that your dog is infected with whipworms, because they don’t show any symptoms.
Like hookworms, tapeworms have tiny teeth that they use to attach themselves onto the walls of the small intestines, where they feed on digested food. They are flat (hence the name tapeworm), and can get very long, sometimes exceeding a foot in length.
Other intestinal parasites that affect dogs include intestinal flukes, coccidian, and giardia.