Pet owner walking a dog by the riverside while carrying a cat in a pet bag

Parasite care for daily prevention

Fleas, ticks, and intestinal worms

Parasites can quietly affect the health of your beloved pet, sometimes before obvious signs appear. In this article, BLEZ Animal Clinic explains the main types of internal and external parasites seen in pets, how they may affect the body, and how to help prevent parasite problems in daily life.

What are parasites?

Parasites are organisms that live inside or on the surface of another animal, called the host. They survive by taking nutrients or feeding on blood, which can affect the pet’s body and lead to illness or weakness.

Parasites are categorized into 2 main groups:

Illustration explaining internal parasites in dogs and cats

Internal Parasites (Endoparasites)

These live inside the digestive system, heart, or lungs.

Examples: Roundworms, Tapeworms, Whipworms, Hookworms, and Heartworms.

Illustration explaining external parasites in dogs and cats

External Parasites (Ectoparasites)

These live on the skin, fur, or inside the ears.

Examples: Ticks, Fleas, Ear mites, and Mange mites.

Main health effects of parasites

Poor nutrition and slow growth

Internal parasites can take nutrients from the food your pet eats. This may lead to weight loss, a swollen-looking belly, visible ribs, and slower growth.

Anemia

Ticks, fleas, and hookworms feed on blood. A heavy infestation can cause anemia, pale mucous membranes, weakness, and can even lead to shock.

Digestive Issues

Parasites can cause vomiting, chronic diarrhea, or intestinal obstruction in severe cases.

Carriers of serious diseases

Ticks: can transmit blood parasite diseases.

Fleas: Can cause Flea Allergy Dermatitis (FAD)

Mosquitoes: Are the primary carriers of Heartworm disease


Common Symptoms of Infestation

  • Diarrhea or stool containing mucus/blood.
  • Loss of appetite and weight loss.
  • Vomiting
  • Hair loss or skin lesions.
  • Itching of the skin or ears
  • Fatigue and unusually foul smelling stool
  • Visible parasites in stool or on the skin

How to Prevent Parasites

  • Bring your pet for regular health checkups and deworming every 3–6 months, as recommended by a veterinarian.
  • Maintain cleanliness in sleeping areas and living environments.
  • Use tick and flea prevention products consistently.
  • Prevent your pet from eating or licking unfamiliar objects.
  • Monitor for abnormal symptoms and consult a vet immediately if they occur.
Veterinary staff explaining deworming and parasite prevention care for dogs and cats

Fees

Deworming and external parasite prevention fees

Fees may vary depending on your pet’s weight.

Starting at 130 THB

Parasites have rapid life cycles and can be found in many places, including soil, grass, and the surrounding environment. Regular internal and external parasite prevention is one of the best ways to help protect your pet’s health and quality of life.

For Owners Who Want Year-Round Deworming Support

We offer a yearly deworming package that combines internal deworming every 3 months with health check-ups at each visit. It is a good option for owners who want to manage parasite prevention on a regular schedule.

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Frequently Asked Questions (FAQ)

My pet lives strictly indoors. Do they still need deworming?
Yes. Even indoor pets can still be exposed to parasites. For example, mosquitoes may enter the home, parasite eggs may be brought in on shoes or clothing, and carrier insects may transmit tapeworms if accidentally eaten by the pet.
When should I start deworming, and how often?

Puppies and kittens can start deworming from around 4 weeks of age, as some parasites may be transmitted from the mother through the placenta or milk.

For adult dogs and cats, monthly prevention for heartworm, ticks, and fleas may be recommended. For intestinal parasites, deworming is generally recommended every 3–6 months, depending on the pet’s lifestyle.

Can I buy deworming medication and give it to my pet myself?

We recommend consulting a veterinarian before using deworming medication.

Deworming medication must be dosed accurately according to the pet’s body weight. An inappropriate dose may cause side effects or be harmful.

It is also important to choose medication that is appropriate for the type of parasite present.

Some breeds, such as Collies, may be more sensitive to certain medications. Giving medication without veterinary guidance may increase the risk of allergic reactions or serious adverse effects.

Why do I still see worms in the stool after deworming?

This can happen.

The medication kills or paralyzes the parasites, allowing them to be passed out with the stool.

Clean the stool and the area promptly to help prevent reinfection.

Can parasites be transmitted from pets to humans?

Some parasites, such as hookworms and roundworms, can be transmitted to humans.

Transmission may occur through contact with feces or soil contaminated with parasite eggs.

Deworming your pet helps protect not only your pet’s health, but also the hygiene of everyone in your household.

Booking & Consultation

For advice about parasite prevention or deworming for your dog or cat, please contact us via LINE, online booking, or phone.

If your pet has unusual symptoms or needs urgent care, please contact the clinic by phone.