Hair loss in cats: Causes and care for feline alopecia

Cats naturally shed some of their fur as part of normal cellular renewal and seasonal coat changes. This shedding is healthy and typically nothing to worry about. However, when shedding becomes excessive or results in bald patches, clumps of fur lost while grooming, or irritation, it may signal an underlying problem. If you’re concerned about your cat’s hair loss, this guide will help you understand feline alopecia and how to care for your pet.

Identifying feline alopecia

Alopecia is the term for hair loss in animals or humans and can stem from a variety of causes. Seasonal moulting occurs especially in spring and autumn, making cats appear to shed more during these periods. Longhaired breeds generally shed more than shorthaired ones. Regular grooming by brushing can help remove loose fur, stimulate hair growth, and give you the chance to check your cat’s skin and coat condition.

However, if you notice bald patches, thinning fur, dandruff, or skin irritation, your cat may have a problem that needs veterinary attention. Hair loss isn’t a disease itself but often a symptom of another health issue that requires diagnosis and treatment.

Common causes of hair loss in cats

Alopecia can have multiple causes and your vet may need to take skin scrapings or do blood tests for diagnosis. The most frequent causes include:

1. Flea infestation

Fleas are a common cause of skin irritation and hair loss. Flea saliva irritates the skin leading to inflammation and scratching that removes hair. Check your cat and home for fleas and treat promptly with safe flea control products.

2. Skin allergies

Allergies to flea bites, food ingredients, household chemicals, or pollen can provoke hair loss through itchy, inflamed skin. Allergy testing by your vet may identify specific triggers, enabling proper management.

3. Thyroid disease

Hyperthyroidism or other thyroid problems may lead to hair thinning and loss. Blood tests are necessary for diagnosis and treatment with veterinary prescribed medication can usually reverse hair loss caused by this condition.

4. Ringworm (dermatophytosis)

Ringworm is a fungal infection causing circular, crusty bald patches on the skin. It is contagious but treatable with antifungal medications prescribed by your vet. Learn more about ringworm in cats.

5. Psychogenic dermatitis

Also known as overgrooming syndrome, this condition arises from psychological stress causing cats to lick or scratch excessively, leading to hair loss. Causes include moving home, introduction of new pets, or changes in the household environment. Behavioural support and environmental enrichment can help reduce stress.

6. Mites and parasites

Various mites cause intense itching and hair loss through irritation. Your vet can perform skin scrapings to identify mites and prescribe appropriate treatments.

7. Other causes

Hair loss may also be caused by autoimmune skin diseases, nutritional deficiencies, infections, or genetic factors. Some breeds such as the Maine Coon may have predispositions. Veterinarian evaluation is essential for determining the cause.

Caring for cats with hair loss

1. Seek veterinary advice promptly: Early diagnosis helps identify underlying causes and speeds recovery.
2. Prevent and treat parasites: Maintain regular flea and mite control as recommended by your vet.
3. Manage allergies carefully: Work with your vet to identify allergens and adjust diet or environment.
4. Reduce stress: Provide stable routines, hideouts, and avoid abrupt environmental changes.
5. Provide good nutrition: A balanced diet supports healthy skin and coat regeneration.
6. Maintain grooming: Regular brushing encourages healthy skin and identifies any new problems early.

When to see your vet

If your cat shows bald patches, scabs, redness, itchiness, or if hair loss is sudden or worsens, a veterinary consultation is crucial. Alopecia can be a sign of treatable conditions and prompt management improves outcomes.

Responsible cat ownership includes monitoring your feline friend’s coat and skin health regularly, and seeking advice to ensure their wellbeing and comfort.