Canine Worms (Deworming Basics)

Why deworming matters

Deworming is a critical part of puppy care. Intestinal parasites are common, and many puppies are exposed early in life. Some worms are visible (like tapeworm segments), but many are not. A puppy can look “fine” and still carry parasites. That’s why routine deworming and veterinarian stool testing (fecal exams) are so important.

Common symptoms (and when to call your vet)

• Diarrhea (sometimes with mucus or blood)
• Vomiting (occasionally with worms visible)
• Poor growth or weight loss
• Dull, dry coat and “poor doer” appearance
• Pot-bellied look (especially with roundworms)
• Weakness or pale gums (possible anemia, commonly with hookworms)

Why stool testing matters

Not all worms respond to the same medication. If you suspect parasites—or if symptoms persist—bring a fresh stool sample to your veterinarian. Many vets include fecal testing as part of routine wellness care, and it’s one of the best ways to identify the specific parasite and treat correctly.

Also, some eggs/larvae can be dormant in a dog’s body and become active during stress or pregnancy. If something feels “off,” trust your instincts and test.

Roundworms

Roundworms are the most common worms seen in puppies. They’re often described as “spaghetti-like.” Puppies with heavy roundworm loads may develop a pot-bellied appearance, poor growth, vomiting, or diarrhea. In severe cases, roundworms can cause intestinal blockage.

Roundworm eggs are protected by a hard shell and can survive in soil for a long time, which is why contaminated ground (parks, yards, shared potty areas) can be a recurring source of exposure.

Hookworms

Hookworms are small, thin worms that attach to the small intestine and feed on blood. Puppies can be exposed through contaminated soil, and in some cases exposure occurs very early in life. Heavy infestations can be dangerous for puppies, and chronic infections may cause diarrhea, weight loss, anemia, and weakness.

Diagnosis is typically made by microscope exam of feces to look for eggs.

Tapeworms

Tapeworms are commonly associated with fleas (or eating wildlife that carries fleas/tapeworm life stages). You may see small segments in the stool or stuck to the hair around the anus. When dried, they can look like grains of rice.

Tapeworms usually require a specific medication—typical over-the-counter dewormers may not be effective. If you’re seeing “rice-like” segments, talk with your vet and also address the flea source.

Whipworms

Whipworms can be harder to detect without fecal testing. In heavier infestations, symptoms may include diarrhea, weight loss, and a general decline in condition. Occasionally adult whipworms may be seen in stool, but this is not common. If your dog has chronic GI symptoms, your veterinarian can help determine whether whipworms (or another cause) are involved.

Our deworming approach (what we use)

We use Strongid-T as part of our puppy deworming routine. (Always follow veterinarian guidance for dosing and schedules.) Dewormers are designed to kill parasites and can cause side effects—especially if not used properly—so veterinary advice is always recommended.

• Strongid-T schedule: 6–7 weeks, 8 weeks, 12 weeks, and 16 weeks of age
• If symptoms persist, we recommend a fecal test to identify the specific parasite

Prevention tips (simple habits that help)

• Pick up feces promptly to reduce contamination of your yard and public spaces.
• Keep puppies away from unknown feces and heavily trafficked potty areas when possible.
• Use a flea prevention plan recommended by your vet (tapeworm prevention often starts with flea control).
• Schedule regular wellness visits and fecal testing—especially for puppies.