Why Is My Cat Itchy, Scratching or Overgrooming?

Common Questions You May Be Asking

If your cat is constantly itching, scratching or overgrooming, you may be asking:

• Is my cat overgrooming or just grooming normally?
• What can I do to stop my cat’s itching?
• When should I see a specialist for itching?
• Can allergies cause itching in cats?
• Why does my cat keep getting itchy skin problems?

These are some of the most common concerns we see, and they are often linked to the same underlying causes.

What Causes Itching in Cats?

Itching is a symptom, not a diagnosis. Identifying the underlying cause is key to effective treatment.

The most common causes include:

• Allergic skin disease (cat allergies) → Learn more
  Including environmental allergy, food related allergy and flea allergy. In cats, allergic skin disease can present in a range of ways, including itching, overgrooming, crusting, small scabs or skin lesions.

• Parasites (fleas, mites and ringworm) → Learn more
  Such as fleas, mites and other ectoparasites, which can cause significant irritation even when not easily visible. Flea allergy can be particularly important in cats, and even minimal exposure may trigger marked skin disease.

• Skin infections → Learn more
  Bacterial or yeast infections may develop secondary to underlying skin disease and can contribute to inflammation, discomfort and ongoing skin lesions.

• Ear disease and ear infections → Learn more
  Ear inflammation may occur alongside underlying allergy, parasites or infection and can be an important contributor to discomfort, scratching and head shaking.

• Less common or more complex causes
  Less commonly, itching or self trauma may be associated with immune mediated disease, dermatophyte infection (ringworm), mosquito bite hypersensitivity, eosinophilic granuloma complex, or other skin disorders, particularly where signs are unusual or not responding as expected.

In many cats, more than one of these factors may be involved, particularly where signs are ongoing or recurrent.

What Does Itching Look Like?

Itching in cats does not always look like scratching. Signs can include:

• Scratching with the hind legs
• Excessive grooming or overgrooming
• Licking or chewing, particularly at the belly, inner thighs, flanks or paws
• Hair loss, especially where the coat appears thinned or barbered
• Small scabs or crusts, particularly around the head, neck or back
• Head shaking or ear scratching
• Red, inflamed, ulcerated or irritated skin

Some cats show multiple signs at once, while others present with only one pattern. Signs may also vary over time.

Excessive grooming can lead to noticeable hair loss or bald patches, even when itching is not obvious. If this is your main concern, you can learn more about hair loss and overgrooming in cats →

Why Does It Keep Coming Back?

In many cases, itching becomes a cycle. Underlying conditions such as allergies cause inflammation, leading to scratching, grooming, licking or chewing. This damages the skin barrier, allowing further irritation, self trauma or infection to develop, which then worsens the cycle again.

This is why some cats experience:

• Repeated flare-ups
• Ongoing discomfort
• Progressive overgrooming or skin damage
• Only short-term or partial response to treatment

Without identifying and managing the underlying cause, this cycle often continues or progressively worsens.

When Should You Seek Help?

If your cat is showing these signs, the first step is to consult your primary care veterinarian, who can assess your cat and begin initial treatment.

Further investigation or referral may be recommended if your cat:

• Is itching persistently or worsening over time

• Is overgrooming or developing unexplained hair loss

• Has recurrent ear or skin problems

• Is causing skin damage through scratching, licking or chewing

• Has scabs, sores, crusting or inflamed skin

• Is not improving with routine or first-line treatment

In these cases, specialist dermatology assessment starting with a dermatology consultation can help identify the underlying cause and guide more effective, long-term management.

Early assessment can help prevent progression and reduce long-term discomfort.

Frequently Asked Questions