Hair loss in cats is more than just a cosmetic issue – bald spots can be a sign of underlying health problems.
Whether it’s allergies, parasites, or stress, there are many reasons why your cat may suddenly start losing fur.

Possible Causes of Hair Loss in Cats

1. Parasites such as fleas and mites
Fleas, lice, or mites can cause intense itching, leading to excessive scratching, licking, and bald spots – often around the neck, belly, or tail area.

2. Allergies (food, environment, flea bites)
Cats can react sensitively to certain proteins in food, dust mites, pollen, or flea saliva. Common symptoms include itchy, inflamed skin areas and concurrent hair loss.

3. Fungal infections (dermatophytosis)
Ringworm and other fungal infections are highly contagious and appear as round, scaly bald patches. Young or immunocompromised cats are particularly at risk.

4. Hormonal imbalances
Issues with the thyroid or adrenal glands can disrupt normal shedding patterns and lead to widespread hair loss – often without any itching.

5. Stress or boredom
Psychological stress (e.g., moving house, new animals, lack of stimulation) can lead to excessive grooming (psychogenic alopecia), especially on the belly and hind legs.

When Should You See a Vet?

A visit to the vet is strongly recommended if:

• The bald patches are getting larger or spreading

• Your cat is constantly scratching or licking

• The skin appears red, flaky, or inflamed

• Additional symptoms such as diarrhea, vomiting, or behavioral changes occur

Coat Care & Skin Support: What You Can Do at Home

• Brush regularly to remove dead hair and promote circulation

• Provide high-quality food rich in essential fatty acids (like Omega-3 & 6)

• Identify and reduce sources of stress

• Create a low-allergen environment (e.g., reduce household dust)

Doderm – For Healthy, Happy Cats

Doderm supports your cat’s skin in a natural way. The milk-derived antibodies help restore the balance of the skin microbiome, calm irritation, and strengthen the skin barrier.
The result: less itching, faster healing, and greater well-being.

So your cat can go back to doing what she loves most – purring in peace.