How Often Should You Deworm a Dog?

The interval depends almost entirely on the dog's age and on how it lives. Most dogs are dewormed at the wrong interval simply because somebody was told one number once and has followed it ever since.

Puppies: 2 weeks, 4 weeks, then monthly

Puppies are born with worms or pick them up from their mother's milk. This is normal and expected, not a sign of neglect.

• At 2 weeks old, the first treatment.
• At 4 weeks, the second.
• Then every month until 6 months old.
• Then the adult schedule.

The tight interval is deliberate. Most treatments kill the worms present on the day, not the eggs that hatch afterwards, so repeating catches each new wave before it matures and lays more.

Adults: every 2 to 3 months

From 6 months old, every 2 to 3 months, depending on the breed and how the dog lives:

• Every 2 months for dogs that hunt, scavenge, eat faeces, roam, or live with young children
• Every 3 months for a typical household dog

A pregnant dog should be dewormed on a schedule your vet sets, since treating her reduces what passes to the puppies.

Our free deworming and flea and tick planner works out the next twelve months of dates from your dog's age and last treatment, ready to add to your phone's calendar.

The worms that matter

Roundworms

The most common, and the ones you may actually see in vomit or faeces, looking like pale spaghetti. Heavy burdens cause the classic pot-bellied, poor-coated puppy.

Hookworms

They attach to the gut wall and feed on blood, which makes them dangerous in small puppies: anaemia, weakness, pale gums, sometimes death. They can also get in through the skin, so a dog does not have to eat anything to catch them.

Tapeworms

Usually caught by swallowing an infected flea while grooming. You may see rice-like segments around the tail or in bedding. Because fleas are the route, tapeworm keeps coming back until the fleas are dealt with.

Whipworms

They cause long-running large-bowel diarrhoea, sometimes with blood. Their eggs survive in soil for years, so a dog often reinfects itself from the same compound.

The part owners underestimate: people

Several of these worms infect people. Roundworm eggs swallowed by a child can travel through the body and, rarely, damage an eye. Hookworm larvae get in through bare feet and cause itchy tracks in the skin.

That is why small children in the house move a dog to the shorter interval. Deworming is as much a household health measure as a canine one.

Choosing a product

Not every dewormer covers every worm. Some treat roundworm only; broad-spectrum products cover roundworm, hookworm, whipworm and tapeworm. If tapeworm segments are appearing, you need a product that covers tapeworm, and you need to treat the fleas at the same time or it comes back.

Dosing is by weight, and underdosing is common because owners guess. Weigh the dog rather than estimating, particularly a growing puppy whose weight changes month to month.

Buy from a vet or a reputable pharmacy. Fake and expired products are widespread in Nigeria and are a common reason a "treated" dog still has worms.

Signs a dog needs treating now

• Visible worms, or rice-like segments in faeces, vomit or around the tail
• Scooting along the ground, though this is more often the anal glands
• A pot belly with a dull coat, especially in a puppy
• Diarrhoea that keeps coming back, sometimes with blood
• Weight loss despite a good appetite
• Pale gums, which means anaemia and is urgent: see a vet the same day

Where deworming quietly fails

• Treating one dog in a house of several. They reinfect each other within weeks.
• Ignoring fleas. Tapeworm returns for as long as fleas are present.
• Leaving faeces in the compound. Eggs mature there and the dog reinfects itself.
• Guessing the weight. Underdosing leaves survivors.
• Treating once and stopping. There is no lasting immunity; reinfection is normal, which is why it is a schedule and not a cure.

None of this is expensive on its own, which is exactly why it slips: each treatment feels too small to prioritise, and the consequence, an anaemic puppy or a child with a migrating larva, arrives far enough later that nobody connects the two.

Routine deworming is covered on every Skeepy Pet HMO plan, alongside the consultations that go with it, at any vet clinic in Nigeria. That turns it from a recurring small decision into part of what you already have.