Common worms and intestinal parasites in dogs


roundworms(Toxocara Canis, Toxascaris leonine) is the most common intestinal parasite in dogs. They are especially common in puppies.

Adult roundworms live in the host’s gut and feed on the host’s food. Adults are round, white to light brown, and several inches long. These worms look a lot like spaghetti or angel hair spaghetti.

Adult dogs become infected with roundworms by ingesting roundworm larvae, usually from contaminated soil or from infected prey (such as mice or other small mammals).

Puppies are born with roundworms after being infected with roundworms from their mother’s uterus during pregnancy.Additionally, nursing puppies may ingest roundworm larvae in breast milk.

Once ingested, the larvae enter the dog’s liver. As they develop into adult worms, they enter the lungs, are coughed up by dogs and then swallowed. Adult roundworms live in the dog’s gut. Their eggs are shed in the dog’s feces and develop into larvae. The life cycle repeats when another host ingests the larvae.


Signs of roundworm infection include diarrhea, vomiting, a pot belly, coughing (dogs may cough up or spit out worms), weight loss, and a dull coat. Many dogs do not show signs of infection at first.


Your veterinarian can test your dog’s stool sample for worms by performing a lab test called fecal flotation. If adult roundworms are present in the small intestine, the eggs of the roundworm can be seen in the stool under a microscope.


Treatment for roundworms consists of multiple oral anthelmintics. Deworming kills only the worms in the gut, so repeated administrations are required to kill newly developed adult worms. Since puppies are often affected, they are usually dewormed (whether eggs are seen under a microscope or not) during the first few groups of puppies vaccinated. Note that not all over-the-counter repellents are effective. Your veterinarian is the best source for this medication. notes: Several ways to prevent heartworms can also prevent roundworms.

zoonotic disease

Humans can become infected with roundworms through contact with contaminated soil, which can lead to a serious disease called visceral larval migrans. Always wear gloves when handling any soil, especially soil that may come into contact with dog poop. Children are particularly at risk.


Common worms and intestinal parasites in dogs
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