Deworming a puppy: When, how and why?

Helene Aspgren

When you welcome a little puppy into your home comes the responsibility of making sure it grows up healthy and strong. An important part of this is deworming. In this article we go over everything you need to know about deworming puppies.

What is deworming?

Deworming means giving your puppy a means to prevent or treat internal worm infections. Puppies are particularly susceptible to parasites such as roundworms and hookworms, which can adversely affect their health.

When should you deworm your puppy?

For optimal protection, deworming should start early:

  1. 4 weeks of age : First deworming. This is because puppies can be born with roundworms transferred from the mother during pregnancy.
  2. 6-8 weeks of age : Second deworming.
  3. Subsequent : Continue deworming every month until the puppy is six months old.

After six months of age, a deworming frequency based on the dog's lifestyle and risk exposure is recommended.

How does deworming work?

There are several deworming preparations available on the market, including tablets, pastes and spot-on solutions. You should always consult your veterinarian before starting a deworming routine to ensure you choose the right product for your puppy's specific needs.

Why is deworming so important?

Deworming plays a vital role in maintaining your puppy's health:

  1. Protection against disease : Worms can cause serious health problems such as diarrhea, vomiting and stunted growth.
  2. Prevent spread : By deworming your puppy, you help prevent the spread of worm infections to other dogs and even to people.
  3. Overall health : A worm-free puppy is generally more alert, eats better and has a nicer coat.


Taking care of your puppy's health through regular deworming is a crucial step in ensuring a happy and healthy upbringing. With the right knowledge and advice from your vet, you can give your puppy the best protection against internal parasites.

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