Dogs can pick up parasites from their environment, other animals, and even contaminated food and water.
Some common parasites found in dog stool include hookworms, roundworms, and tapeworms. These parasites can cause a range of health issues, from diarrhea and vomiting to weight loss and anemia.
The most common way dogs get parasites is through contact with infected feces, contaminated soil, or by eating an infected animal. This can happen when they dig in the yard, sniff around in areas where other dogs have defecated, or eat prey like mice or rabbits.
Parasites can be particularly problematic for puppies, as their young immune systems can't handle the infection as well as adult dogs.
Causes and Transmission
Pets can contract worms by ingesting infected animal feces that contains worm eggs.
A pet can also get worms from its mother if she is infected, and this is extremely common in dogs and cats. Mother-to-offspring transmission is a clever life cycle hack used by worms, where they hide dormant for years within a female's body and reactivate during pregnancy.
If a mother is infected, she can pass worms to her puppies or kittens before or shortly after giving birth. This is why most puppies and kittens are born with roundworms or hookworms.
A pet must eat an intermediate host, such as a flea or a small mammal, to contract tapeworms. This often indicates a current or past flea infestation.
The most common worm species that can infect pets are roundworms, hookworms, and tapeworms.
Here's a list of the most common worms that can infect pets and their typical transmission routes:
Symptoms and Treatment
If you suspect your dog has worms, don't panic. Intestinal parasites are not a life-threatening emergency, but prompt treatment is essential.
Save a small stool sample and a few of the worms in a baggie or disposable plastic container and bring them to your primary care veterinarian during their next business day. Your veterinarian can confirm the worm type and run fecal tests to detect other parasite eggs.
To prevent or treat parasites, start prompt treatment when any intestinal parasites are detected. Periodic routine deworming may be necessary for dogs at risk for re-infection. Controlling fleas will prevent infection of certain types of tapeworm.
Here are some common signs of intestinal worm infections:
- Malnutrition
- Poor coat
- Lethargy
- Weight loss
- Dehydration
- Diarrhea
- Vomiting
- Bloated abdomen
- Stomach pain
- Intestinal blockage
- Blood in stool
- Anemia
- Pneumonia
Treatment for hookworms typically involves deworming medication administered twice, once to eliminate the adult population and then again two to four weeks later to eliminate the younger generation.
Pet Infection Symptoms and Treatment
Dogs can show no outward signs of intestinal parasite infection, so it's essential to be aware of the potential symptoms.
Malnutrition is one common symptom of intestinal parasites.
Lethargy and weight loss are also possible signs of a pet infection.
Puppies are especially vulnerable to intestinal parasites and can contract worms from their mothers.
Dehydration, diarrhea, vomiting, and a bloated abdomen are all possible symptoms of a pet infection.
Intestinal blockage, blood in stool, and anemia are more severe symptoms that require prompt treatment.
Puppies can be infected through their mother's milk if she is infected.
Hookworms can cause anemia in pets due to the amount of blood they consume.
If left untreated, intestinal worms can lead to serious health issues in puppies.
Here are some common symptoms of intestinal parasites:
- Malnutrition
- Lethargy
- Weight loss
- Dehydration
- Diarrhea
- Vomiting
- Bloated abdomen
- Intestinal blockage
- Blood in stool
- Anemia
- Pneumonia
Canine Infection Severity
Intestinal worms can be a serious problem in young puppies, causing anemia and poor growth and development. Hookworms can lead to anemia, while roundworms can cause poor growth and development.
Some intestinal parasites are life-threatening, especially in debilitated animals or those with a weakened immune system. Heartworm is a life-threatening parasite that causes significant damage to the heart and lungs.
In adult dogs, intestinal parasites are only occasionally life-threatening. However, they can still cause a range of health issues, including malnutrition, poor coat, lethargy, and weight loss.
Puppies are especially vulnerable to intestinal parasites, and can easily contract worms from their mothers. If left untreated, intestinal worms can lead to serious health issues in puppies.
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Here are some common symptoms of intestinal worm infection:
- Malnutrition
- Poor coat
- Lethargy
- Weight loss
- Dehydration
- Diarrhea
- Vomiting
- Bloated abdomen
- Stomach pain
- Intestinal blockage
- Blood in stool
- Anemia
- Pneumonia
It's worth noting that many dogs show no outward signs of intestinal parasite infection, so it's essential to regularly check your dog's stool and consult with a veterinarian if you suspect an infection.
Intestinal
Intestinal parasites can be a serious problem in dogs, and it's essential to know the symptoms and treatment options.
Intestinal worms can cause a range of health issues, from malnutrition and poor coat to lethargy and weight loss. Some dogs may also experience diarrhea, vomiting, bloated abdomen, stomach pain, intestinal blockage, blood in stool, anemia, and pneumonia.
Puppies are especially vulnerable to intestinal parasites, and they can contract worms from their mothers. If left untreated, intestinal worms can lead to serious health issues in puppies.
Hookworms are one of the most common types of intestinal worms in dogs. They can grow to about one inch in length and can be as small as one-eighth of an inch. Immature hookworms live in the soil and can survive there for several months.
Here are some ways dogs can contract hookworms:
• Ingesting dirt that hookworms live in as larvae, either by licking their paws or eating the soil.
• Swallowing hookworm eggs after coming into contact with waste from an infected dog (or with soil that is contaminated with the waste).
• Hookworms can burrow through a dog's skin, infecting the pet subcutaneously (usually through the feet).
• Puppies can contract hookworms from their mother's milk if she is infected.
Diagnosis of hookworm is usually made under a microscope, by detecting their eggs within a dog's stool sample. Treatment includes deworming medication that is typically administered twice, once to eliminate the adult population, and then again two to four weeks later to eliminate the younger generation.
Types of Parasites
There are several types of internal parasites that can infect dogs, including roundworms, heartworms, tapeworms, hookworms, and whipworms.
Tapeworms are segmented worms found in the intestines of dogs, and they rarely cause serious disease. However, they can still cause problems such as a failure to digest and absorb food normally, malaise, and irritability.
Some tapeworm species, like Dipylidium caninum, can be acquired from eating fleas, while others, like Taenia species and Echinococcus granulosus, can be contracted from eating raw meat and offal from large mammals.
Non-worm parasites, such as Coccidia, Giardia, and Spirochetes, can also infect dogs, often without noticeable symptoms.
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Roundworms
Roundworms are one of the most common internal parasites found in dogs. They can be passed to other dogs and humans, including children, through contaminated feces.
Two species of roundworms infect dogs: Toxocara canis and Toxascaris leonina. They are whitish and look like short strands of spaghetti about 1 to 3 inches long.
Roundworm infection in dogs may be indicated by digestive upset, a bloated abdomen, malnutrition, coughing, diarrhea, vomiting, or no symptoms at all.
In puppies, infection with Toxocara canis usually occurs by transfer into the developing fetus through the placenta or while nursing. If pups less than 3 months old eat the eggs that have been in the environment for at least 4 weeks, the eggs hatch, releasing larvae that penetrate the intestinal wall.
The first indication of infection in young animals is lack of growth and loss of condition. Infected animals have a dull coat and often appear "potbellied." Worms may be vomited and are often passed in the feces.
In the early stages, migrating larvae may cause pneumonia, which can be associated with coughing. Diarrhea with mucus may be evident. Infection in dogs and cats is diagnosed by detection of the roundworm eggs in feces using a microscope.
Treatment for roundworm infections in dogs involves deworming medication, which can be prescribed by a veterinarian. Preventive programs for heartworm infection also control intestinal roundworm infections.
To reduce the transmission of infection from mother to newborn, a program of antiparasitic drugs given during pregnancy and after the birth of a litter is recommended. Otherwise, the pups should be treated as early as possible, ideally 2 weeks after birth and repeated at 2- to 3-week intervals to 2 months of age, then monthly to 6 months of age.
Here are some common symptoms of roundworm infection in dogs:
• Digestive upset
• Bloated abdomen
• Malnutrition
• Coughing
• Diarrhea
• Vomiting
• No symptoms at all
It's essential to practice good hygiene, such as prompt removal of feces and washing hands, in potentially contaminated areas or around affected dogs to prevent the transmission of roundworms to humans, especially children.
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Flukes
Flukes are a type of parasite that can infect dogs and many other animals. They have a complex life cycle that can involve multiple intermediate hosts.
Flukes can be found in various parts of the world, including the northern Pacific Rim, North America, Europe, Australia, and Japan. They can infect dogs through various means, such as eating raw or improperly prepared salmon and similar fish.
Some common species of flukes that infect dogs include intestinal flukes, liver flukes, and others. Intestinal flukes can cause intestinal inflammation, while liver flukes can cause liver disease and fibrosis.
Here are some common types of flukes that infect dogs:
In severe cases, liver flukes can even be associated with cancer in the liver or pancreas.
Non-Worm
Non-Worm Parasites are a serious threat to your dog's health. They can be microscopic, single-celled, or spiral-shaped bacteria that live in the intestines or bloodstream of a dog.
Coccidia are a type of non-worm parasite that can cause dehydration, abdominal upset, runny diarrhea, and vomiting in dogs. They are more common in puppies who contract them from their mothers or siblings.
Giardia is another type of non-worm parasite that can cause poor coat, dehydration, loss of weight, and diarrhea in dogs. It's passed through the intestines in waste matter and can be ingested through contaminated soil, water, or feces.
Spirochetes are spiral-shaped bacteria that can live in the intestinal tract or bloodstream of a dog and can lead to serious health conditions like Lyme disease, leptospirosis, and syphilis.
Treatment for non-worm parasites usually involves an anti-parasitic prescribed by your veterinarian, and in some cases, an antibiotic like metronidazole. Disinfecting the home is also crucial to prevent the spread of these parasites.
Frequently Asked Questions
What does parasite poop look like in dogs?
Parasite poop in dogs can resemble spaghetti (roundworms) or cucumber seeds/rice (tapeworm segments). If you suspect a parasite infestation, consult a veterinarian for proper diagnosis and treatment
How do you get rid of parasites in dogs?
To get rid of parasites in dogs, treatment options vary depending on the type of parasite, such as heartworms, coccidia, or giardia, and may include medications like Albon, Panacur, or metronidazole. Consult a veterinarian for proper diagnosis and treatment to ensure effective parasite removal.
Sources
- Is That a Worm in My Pet's Feces? (urgentvet.com)
- Internal Parasites in Dogs (vcahospitals.com)
- Gastrointestinal Parasites of Dogs - Dog Owners (merckvetmanual.com)
- Intestinal Parasites in Dogs (northeastanimalhospital.com)
- Dog Parasites - How to Prevent, Detect & Kill Dog Parasites (countrysideveterinaryclinic.org)
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