{ "@context": "https://schema.org", "@type": "BlogPosting", "headline": "Dog Itching — Allergy or Parasites? Find out the reason for scratching", "description": "Did the dog scratch himself for blood? Itching is not a disease, but a symptom. Read about the most common causes: ulcerative, food allergy or atopy. Sacrum Vantaa helps.", "datePublished": "Jan 27, 2026", }

Dog Itching — Allergy or Parasites? Find out the reason for scratching

📞 Appointment for skin problems in Vantaa: 010 739 9130

Itching is one of the most insidious ailments that deprives both the dog and the owner of the night's sleep. Constant scraping, licking and rubbing break the skin and expose it to inflammation.

But what is the cause of itching? Is it “just” fleas or a lifelong allergy?

Step 1: Ulcological (Easiest to Exclude)

Before talking about allergies, it is always necessary to exclude parasites. Even if the dog is groomed and internally tidy, it can become infected from the outside.

  • Capitis: Severe itching (especially at night), flaking and hair loss. It also infects a person.
  • Lice and midges: Can sometimes be seen with the naked eye on fur.
  • Fleas: Rarer but possible in Finland (e.g. hedgehog flea).

The veterinarian can determine the parasites using a scratch sample or a tape sample.

Step 2: Allergies

If the parasites are evicted and the itching persists, suspicion turns to an allergy.

  1. Atopia (Environmental Allergy): The most common cause. The dog reacts to dust mites, pollen or mold spores. Itching often targets the paws, face, ears and groin.
  2. Food allergy: The dog is allergic to some protein in the food (e.g. beef, chicken). Symptoms are similar to those of atopy, but may be accompanied by abdominal symptoms.

When for examinations?

Do not be left to try shampoos at home if the skin is broken or itching is constant. Come to the reception at the Veterinary Hospital Sacrum if:

  • The dog scratches the skin for blood.
  • The skin reddens, smells bad, or secretes pus (skin infection).
  • The dog licks its paws compulsively.

We will find out the cause of the itching systematically and bring relief to your dog.

📍 Veterinary Hospital Sacrum — Porttisuontie 13, Vantaa

Dog seizure — first aid and when to go to the emergency room?

An epileptic seizure or seizure in a dog is a frightening situation. Read the instructions: what to do during a seizure and when to rush to the veterinarian on duty.

27.01.2026
Blog Category
Heart disease in dogs — identify the first symptoms (cough and fatigue)

Does the dog cough at night or get tired while jogging? These can be the first symptoms of a heart defect. Learn how to recognize the signs of murmur or impairment in time.

27.01.2026
Blog Category
When is it necessary to remove tartar in a dog? Identify the right moment

When should a dog be taken for tartar removal? Don't wait for teeth to wiggle. Learn why regular cleaning saves money and your dog's health.

27.01.2026
Blog Category
The dog suddenly goes limp - what to do first?

The dog goes limp and can't afford weight on the leg? Read the veterinarian's instructions: is it a cruciate ligament injury, wound or sprain? When to go on call?

27.01.2026
Blog Category
Old Dog Pains — How to Recognize Them?

Is your dog slowing down? It may not just be old age, but treatable pain. Read on for 5 signs by which you can recognize the pain of a senior dog.

27.01.2026
Blog Category
Dog diarrhea — home treatment and when to go to the vet?

Dog has diarrhea? Refer to the instructions for home care (feeding, lactic acid bacteria) and identify the signs when it is necessary to go to the doctor (blood, puppy, fatigue).

27.01.2026
Blog Category