Informational Blog

Why Is My Pet So Itchy? Common Causes and Treatments for Dogs and Cats

By August 26, 2025 No Comments

August is itchy pet awareness month, making this the perfect time to talk about what makes pets itchy and how we can help them. If your dog or cat is scratching, licking, or chewing at their skin more than usual, you’re not alone—itching (also called pruritus) is one of the most common reasons pets visit the veterinarian.

While the occasional scratch is normal, frequent or intense itching can point to an underlying issue that deserves attention. Uncontrolled itching can lead to infections, discomfort, and permanent changes to a pet’s skin, not to mention many sleepless nights.  Understanding the common causes of itchiness and the treatments available can help your pet feel more comfortable and prevent more serious skin problems.

Common Causes of Itching in Pets

  1. Fleas and Other Parasites
  • Fleas are a leading cause of itching in both dogs and cats. Even a single flea bite can trigger severe scratching, especially in pets with flea allergy dermatitis, an allergic reaction to flea saliva. Fleas love warm weather and multiply all summer, so a small flea problem in April becomes a big problem in August/September.
  • Mites, such as those that cause mange, can also lead to intense itching and hair loss. Ear mites are a common cause of itchy ears in cats.
  • Ticks can cause localized irritation and transmit diseases.
  • Other Insect bites, such as flies, ants, or mosquitoes, can cause localized itching.

What to look for: Flea dirt (tiny black specks), hair loss around the tail or belly, red bumps, or constant chewing at the skin. Is it flea dirt or plain old regular dirt?  Collect some of the specks from your pet’s fur and place them on a white, damp surface like a paper towel.  Flea dirt shows a reddish color when wet.

  1. Allergies

Just like people, pets can develop allergies. Unlike people, dogs and cats are less likely to have watery eyes and runny noses, and more likely to show their allergies as itchy skin. These may include:

  • Environmental allergies (pollen, mold, dust mites) can be seasonal depending on the allergen.
  • Food allergies (proteins such as chicken, beef, or dairy are common triggers). Food allergies are one of the most common reasons for itching in pets!
  • Contact allergies (reactions to shampoos, cleaning products, or certain fabrics)

What to look for: Red, inflamed skin; frequent ear infections; paw licking; or seasonal flare-ups. Paw licking can appear as reddish-brown staining on the feet.

  1. Skin Infections

Itching can also be caused—or worsened—by bacterial or yeast infections. These often develop secondary to allergies or excessive scratching.

What to look for: Greasy or crusty skin, foul odor, scabs, or patches of hair loss.

  1. Dry Skin

Low humidity, frequent bathing, or underlying health conditions can lead to dry, flaky skin that makes your pet itchy. This problem is more common in winter.

  1. Other Medical Conditions

Hormonal imbalances (such as thyroid disease or Cushing’s disease) and certain autoimmune conditions can show up as itchy, irritated skin.

Treatment Options for Itchy Pets

Because itching has many possible causes, the best treatment starts with an accurate diagnosis from your veterinarian. Some common approaches include:

  • Parasite Control: Year-round flea and tick prevention is essential. Here in the southeast, there is no season when we do not see external parasites on pets.
  • Allergy Management: This may include antihistamines, prescription medications like Cytopoint and Apoquel to calm the immune system, special diets, supplements, or allergy testing and immunotherapy.
  • Infection Treatment: Antibiotics or antifungal medications may be prescribed if a skin or ear infection is present.
  • Topical Relief: Medicated shampoos, sprays, or creams can soothe irritated skin and promote healing.
  • Environmental Support: Using air filters, bathing with gentle shampoos, and moisturizing dry skin can help reduce flare-ups. Reducing environmental allergens by not smoking around pets, using unscented cleaning products, and not using air fresheners/burning scented candles.

When to Call Your Veterinarian

Schedule a veterinary visit if you notice:

  • Persistent scratching, licking, or chewing
  • Hair loss or bald patches
  • Red, scabbed, or oozing skin
  • Head shaking or scratching ears
  • Changes in your pet’s coat or skin odor

Early intervention not only helps your pet feel better but also prevents more serious complications.

Final Thoughts

Itching may seem like a minor nuisance, but for dogs and cats, it can signal allergies, parasites, or infections that require treatment. The good news is that with the right care, most itchy pets can find relief. If your furry friend is scratching more than usual, talk to your veterinarian—they can identify the cause and create a treatment plan tailored to your pet’s needs.