What Are the Different Types of Dog Internal Parasites?

While external parasites like fleas and ticks are easy to detect, intestinal parasites are difficult to detect because they live inside your pet’s digestive system and transfer microscopic eggs or pathogens in his or her stool that are too small to see with the naked eye. On the other hand, tapeworms shed segments that look similar to sesame seeds or rice grains and can be observed in your pet’s feces or around their rectum. Roundworms are another exception, as they can occasionally be found in your pet’s vomit or stool. However, intestinal parasites are hard to detect, and you should take your dog to the vet as soon as you notice them.

What are the different types of internal parasites? 

To protect your dog, learn about prevalent parasites in dogs and how to treat and prevent these dangerous pests on this website.


Heartworm is a roundworm that dwells in a pet’s heart. Heartworms are uncommon in the north, but animals traveling south or east may be vulnerable. Heartworm treatment is time-consuming and expensive, and the prognosis is usually poor if left untreated for an extended period.


Roundworm is the most common worm infestation in dogs and cats. Except in extreme cases, they can usually be avoided and treated. Roundworms can grow quite large, resulting in weight loss, bloating, diarrhea, puking, and colic. Roundworms can and will live in human hosts if given a chance. Because roundworms can potentially cause human illness, deworming pets and dog and cat vaccinations are critical to reducing owner risk.


Hookworms are blood-sucking parasites in the small intestines of cats and dogs. They lead to anemia by sucking blood from the pet’s small intestine. Hookworms can be fatal, particularly in puppies and kittens, so ensure your deworming procedures are thorough. Hookworms can infect people of all ages and cause serious illness.


Whipworms are extremely uncommon in cats but extremely common in dogs. Because whipworms do not grow as large as some more dangerous worms, they rarely cause serious illness. Nonetheless, if untreated, huge populations can form, causing serious troubles. Humans are more susceptible to whipworm species than dogs and cats. Whipworms are usually easily treated with deworming meds.


The most popular worm that causes “scooting,” or dragging a dog or cat’s bum across the ground, is a tapeworm. Tapeworms are relatively common and are typically treatable with deworming meds. Because tapeworms and fleas possess symbiotic life cycles, both internal and external parasite preventative measures must be practiced at the same time. Your pet may become contaminated with tapeworm if they come into contact with fleas.

How to treat internal parasites?

Your veterinarian may prescribe dewormers for roundworms, hookworms, and tapeworms. Many dewormers are taken orally and are either prescribed by a veterinarian or sold over the counter. Before true worm killing, a period of stabilization with steroids, heartworm preventives, and antibiotics is required.


Heartworm medication that the FDA has approved is administered to dogs. Treatment typically lasts 30 to 60 days and includes three injections. Heartworm treatment for dogs must be closely monitored at a vet clinic or hospital. Dogs must rest after therapy.


Surgery may be recommended in severe heartworm cases. Because heartworm treatment is extensive and costly, pet pa
fvdcxents should consult their veterinarian while visiting the vet dentist in Greeley at the same time about heartworm preventative measures for their dog.

The Bottom Line

Consult your veterinarian to diagnose, treat, and prevent prevalent intestinal parasites. Remember that regular vet visits are essential for your dog’s health. Communicate with your veterinarian as soon as possible and report any signs of illness.