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Worms in dogs can be fatal if ignored, especially in puppies. Learn the symptoms of worm infestation, the most dangerous types of. Free WhatsApp consultation.
Worms in Dogs: Symptoms, Types, Treatment, and Prevention Schedule
Worm infestation is one of the most common health problems in dogs in Indonesia — and one of the most frequently overlooked. Yet heavy worm infestations, especially in puppies, can cause severe anemia, malnutrition, organ failure, and even death.
Types of Worms That Affect Dogs
Don't Wait Until It's Too Late!
Roundworms (Toxocara canis)
The most common, especially in puppies. Can grow up to 18 cm long. Transmitted through feces, soil, mother's milk, or rodents. Can be transmitted to humans (zoonotic).
Hookworms (Ancylostoma)
Highly dangerous — they suck blood from the intestinal wall. Causes severe anemia and bloody diarrhea. Can enter through the skin of dogs walking on contaminated ground.
Tapeworms (Dipylidium)
Spread by fleas that are swallowed during grooming. Visible as sesame seed-like segments in feces or around the anus. Not killed by standard dewormers — requires Praziquantel.
Heartworms (Dirofilaria immitis)
The most deadly — lives in the heart and pulmonary arteries. Spread by mosquitoes. Prevalence in Indonesia continues to rise. There is no safe and affordable treatment for already-infected dogs — prevention is the only real option.
Symptoms of Worms in Dogs
- Bloated belly but a thin body (especially in puppies)
- Dull, shedding, unhealthy coat
- Weight loss despite eating well
- Diarrhea, sometimes bloody or mucous
- Vomiting — sometimes with visible worms
- Visible worms in feces (spaghetti-like)
- Tapeworm segments around the anus
- Scooting (dragging the rear on the floor)
- Pale gums (sign of severe anemia)
- Chronic cough (may indicate heartworm)
Recommended Deworming Schedule
| Age / Condition | Frequency |
|---|---|
| Puppies 2–8 weeks | Every 2 weeks |
| Puppies 2–6 months | Every 1 month |
| Adult indoor dogs | Every 3 months (4 times a year) |
| Adult outdoor / hunting dogs | Every 1–2 months |
| Heartworm prophylaxis | Every month (lifelong in high-risk areas) |
Never Use Human Dewormers on Dogs
Some human dewormers are dangerous for dogs — especially those containing high-dose Ivermectin, which can cause neurotoxicity. Collies, Australian Shepherds, Shelties, Border Collies, and Old English Sheepdogs carry the MDR1 mutation that makes them extremely sensitive to ivermectin — even routine preventive doses can be fatal. For these breeds, vets typically choose milbemycin or spinosad instead. Always use products labeled for dogs and consult a vet for the correct dosage based on your dog's weight and breed.
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Frequently Asked Questions
What are the signs that a dog has worms?
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Can dog worms be transmitted to humans?
Medically Reviewed by
Birawa Vet Medical Team
This article has been verified by our medical team to ensure veterinary information accuracy.
The information in this article is for general educational purposes only and is not a substitute for direct consultation with a veterinarian.
Every pet has unique conditions. Do not hesitate to seek professional help if your pet is sick.
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