Intestinal parasites in dogs – Symptoms and types

Dogs, like cats and even humans, may suffer from the presence of worms in their intestines . These parasites cause gastrointestinal conditions that can be very uncomfortable for your dog. In addition, they are very difficult to detect and in some cases we may not be aware that our dog has parasites.

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For this reason, it is important that you deworm your dog both internally and externally on a regular basis. Thus, it will prevent possible infestations in the dog or even the contagion for humans in certain cases.

If you want to know more about this topic, in this article of YourCatCareguide you will be able to know the most common parasites that can affect your dog and useful information to know how to fight them. Find out all about intestinal parasites in dogs next.

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Types of intestinal parasites

Usually the parasites lodge in the animal’s gut but may also, in advanced stages affect other organs like the heart or the lungs. There are many types but all fall into two types: tapeworms and roundworms.


There are several types within this group. All are lodged in the small intestine. Fleas in the dogare intermediate hosts of these parasites. If your dog ingest infected fleas will get infected. For this reason it is important that in addition to the internal deparasitization it performs in a regular way external parasitic diseases.

Other tapeworms may be present in raw meats or viscera of animals such as cows. Good nutrition is important to prevent the presence of these parasites. If you feed your dog with homemade food, avoid raw or undercooked meats.


Adult larvae can measure between 4 and 17 cm and about 2 mm in diameter. They can be observed with the naked eye in the feces of the animal, although not always possible.

Its contagion usually occurs by ingesting eggs or larvae present in the soil or feces of an infected animal. They are very resistant to environmental conditions and can survive for several months abroad.

The roundworms that most frequently affect dogs are Ascaris (Toxocariasis). They can be found in both dogs and cats and can also infect humans.

To avoid contagion we should avoid at all times coming into contact with the feces of the animal. The parasitized dogs can transmit this parasite through their licks. For this reason, it is very important the hygiene of our dog, such as your bed and other places where you spend time.


The internal deworming of our dog should begin early:

  • The puppies should be free of parasites before each vaccination. From the second week of life, deworming begins. Every 2 weeks until the puppy is 12 weeks old. Then it should be every 3 months. It is best to consult your veterinarian to plan the schedule of vaccinationsand when to deworming.
  • The adult dogs should be wormed every three months. This will eliminate all possible parasites present. If your dog suffers from a disease such as Leishmaniasis consult your veterinarian about whether it is necessary to parasitize more often. Depending on the health of the animal and its life habits, special precautions should be taken.

You should also bear in mind that pregnant females and lactating pups may become infected. If the mother is parasitized, the puppy will become infected from birth and this is very dangerous. Therefore, you should properly deworm your dog throughout pregnancy and lactation.

Symptoms of intestinal parasites in dogs

Intestinal parasites are sometimes difficult to detect . Therefore, prevention is important because an infected animal may show no symptoms. When the infestation lasts in time the following symptoms appear:

  • Loss of appetite
  • Weight loss
  • Vomiting
  • Abdominal pain
  • Soft stools
  • Puppies with inflamed abdomen
  • Delayed growth

If you notice blood in your stool or vomit , consult your veterinarian immediately.

Analyzes and treatment

From a stool analysis your veterinarian will be able to detect possible parasites. If you suspect that your dog has parasites, you can perform an analysis because it is never too late to prevent it. Although not infected, a dose of anti-parasite will be good to make sure it is completely clean.

The antiparasitic drugs are available in various shapes, tablets, pipettes, syrups and injectables. Choose the most suitable one for your puppy and administer it on a regular basis every 3 months.

At this time you will make sure that you have done away with all the phases of the parasites that may be present. Most do not protect against future infestations, but only eliminate existing ones. But it is important not to forget that every 3 months you should give your dose. This way your dog will be protected throughout the year and can follow his life normally.

Find out more about this topic in our article on home remedies for dog worming .

This article is purely informative, in we do not have the capacity to prescribe veterinary treatments nor to make any type of diagnosis. We suggest you bring your pet to the veterinarian in case of any type of condition or malaise.

If you want to read more articles similar to intestinal parasites in dogs – Symptoms and types , we recommend that you join our section Deworming and wormers .

Emily Harris

Hi Guys, Girls, and Cats:-p I am Emily Harris, and you can see in above pic. She loves me I swear. I saved her from a dumpster a few weeks back.

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