Worms in dogs are typically caused by exposure to various parasites, which can enter the dog's body through several routes. The most common types of worms affecting dogs include roundworms, tapeworms, hookworms, and whipworms. Here are some key causes:

1. **Ingestion of Eggs or Larvae**: Dogs can ingest worm eggs or larvae by sniffing or eating contaminated soil, feces, or infected animals. For example, roundworms are often transmitted when dogs consume soil that contains eggs shed in the feces of infected animals.

2. **Fleas**: Tapeworms are commonly transmitted through fleas. If a dog ingests a flea while grooming itself, it may also ingest the tapeworm larvae that the flea carries.

3. **Mother to Puppies**: Puppies can contract worms from their mother either in utero or through her milk. This is especially common with roundworms and hookworms.

4. **Contaminated Water or Food**: Drinking contaminated water or eating food that contains worm eggs can also lead to infection.

5. **Hunting or Scavenging**: Dogs that hunt or scavenge may consume infected rodents or animals, leading to transmission of various worms.

To prevent worm infestations, regular veterinary check-ups, deworming treatments, and maintaining good hygiene practices are essential. Regularly cleaning up your dog's feces and ensuring they don't have access to potentially contaminated areas can also help reduce the risk.

If you suspect your dog has worms, look for symptoms such as weight loss, bloated abdomen, diarrhea, or visible worms in the feces. It's important to consult your veterinarian for proper diagnosis and treatment.

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Dog Health Dog Care Parasites Pet Wellness Worms In Dogs