Почему чешется шпиц, если нет блох? - briefly
A spitz may itch despite the absence of fleas because of allergic dermatitis, dry skin, mite infestation, or underlying skin infection. Identifying and treating the specific cause—often through veterinary examination and appropriate medication—stops the irritation.
Почему чешется шпиц, если нет блох? - in detail
A spitz may scratch despite a negative flea test because several non‑fleal factors can irritate the skin.
- Allergic dermatitis – food proteins, pollen, mold spores, or household chemicals can trigger a hypersensitivity response. The immune system releases histamine, causing redness and itching.
- Mange and other ectoparasites – sarcoptic or demodex mites infest the coat and burrow into the epidermis, producing intense pruritus. Tick bites and lice produce similar symptoms.
- Bacterial or fungal infection – Staphylococcus bacteria or Malassezia yeast proliferate in moist, warm areas, leading to inflammation and discomfort.
- Dry skin (xerosis) – low humidity, excessive bathing, or harsh shampoos strip natural oils, leaving the epidermis flaky and itchy.
- Hormonal disorders – hypothyroidism and Cushing’s disease alter skin integrity and sebum production, resulting in pruritus.
- Contact irritation – abrasive grooming tools, certain fabrics, or topical products containing fragrances or preservatives can provoke a localized reaction.
- Underlying systemic disease – renal failure or liver insufficiency may cause toxin accumulation in the skin, manifesting as generalized itching.
Diagnostic steps include a thorough physical examination, skin scrapings for mites, cytology for bacteria or yeast, allergy testing (intracutaneous or serum IgE), blood work to assess thyroid, adrenal, renal, and hepatic function, and a review of diet and environmental exposures.
Treatment strategies correspond to the identified cause: antihistamines or corticosteroids for allergic dermatitis; acaricidal medication for mange; antimicrobial or antifungal agents for infections; moisturizers or fatty‑acid supplements for xerosis; hormone replacement for endocrine disorders; and elimination of irritants from the environment.
Preventive measures involve regular veterinary check‑ups, consistent flea and mite prophylaxis, balanced nutrition rich in omega‑3 fatty acids, gentle grooming with hypoallergenic products, and maintaining appropriate indoor humidity.
Addressing the precise origin of the itch eliminates unnecessary medication and restores the dog’s comfort.