Introduction.
Hair loss in cats, often referred to as alopecia, is generally a natural occurrence and can frequently resolve without intervention. However, sudden or excessive hair loss can alarm cat owners, especially if it comes with signs like unusual licking, biting, scratching, or hairballs. Other visible symptoms such as redness, bumps, scabs, or sores, along with behaviors like changes in appetite, vomiting, diarrhea, or shifts in energy, can signal a deeper issue, and monitoring for these symptoms is important.
Excessive shedding can indicate underlying health concerns, ranging from minor issues to more serious conditions. It’s essential to observe any abrupt changes in your cat’s coat, as they may reflect health problems that require attention. Veterinary guidance can be helpful in identifying the root cause of hair loss and offering appropriate solutions to ensure your pet’s well-being.
5 Causes of Hair Loss
Hair loss in cats, while often a normal occurrence due to shedding cycles, can sometimes point to underlying health issues that require attention. Common causes include poor nutrition, skin allergies, and infestations by parasites like fleas and ticks. Each of these factors can disrupt the health of a cat’s coat and skin, leading to noticeable hair loss. Nutritional deficiencies, for instance, prevent the growth of a shiny, resilient coat.
Skin allergies are another frequent cause, manifesting as itchy, irritated skin that prompts excessive licking and scratching, further contributing to hair loss. Fleas and ticks, if not managed promptly, may cause sores and rashes that result in bald patches.
Other potential causes of hair loss in cats include stress, hormonal imbalances like hypothyroidism, and infections from fungi or parasites. Cats under significant stress may over-groom as a self-soothing behavior, leading to what’s known as psychogenic alopecia. Hypothyroidism, meanwhile, slows down essential bodily functions, affecting hair follicle health and often leading to patches of hair loss.
Additionally, fungal infections such as ringworm or parasitic invasions like mites can cause skin irritation and inflammation, resulting in fur loss and skin discomfort. A balanced diet, a stress-free environment, regular flea control, and early veterinary intervention are all essential steps in maintaining a cat’s coat health and overall well-being. For persistent or severe hair loss, consulting with a veterinarian can provide tailored treatment to ensure your cat’s recovery and comfort.

Here’s a table of some of the causes and factors, excluding repeated items:
Cause |
Notes |
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Poor Diet |
Can lead to dull coat due to nutrient deficiencies |
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Skin Allergies |
Triggered by food, pollen, or materials; causes inflammation, hives, or wounds from scratching |
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Fleas and Ticks |
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Stress |
High-stress levels can result in psychogenic alopecia; over-grooming as a response to anxiety |
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Hypothyroidism |
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Fungal or Parasitic Causes |
Ringworm and mites cause irritation, circular hair loss patches |
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Dermatitis |
Skin inflammation from chemicals or sunburn; causes scratching and hair loss |
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Hormonal Imbalances |
Hyperthyroidism and adrenal disorders disrupt hair growth cycle |
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Fungal Infections |
E.g., ringworm, causes inflamed and crusty skin, more common in kittens |
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Food Allergies |
Rash and itching due to diet allergies; may cause nasal and ocular discharge |
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A newly added item not seen in previous lists is “Urinary Tract Issues”, which can cause pain and stress, potentially leading to symptoms like hair loss if not managed well.

5 Causes of Hair Loss
Listed below are five common causes of hair loss in cats:
1. Poor Diet
2. Skin Allergies
3. Fleas and Ticks
4. Stress
5. Hypothyroidism
Preventing Feline Hair Loss
Causes
Fungal or Parasitic Causes
Food Allergies
Urinary Tract Issues
Dry Skin
Stress
How to Help Your Stressed Cat
Contact Your Vet in Columbus, OH if Your Cat is Losing Hair
1. Allergies – The Hidden Culprit of Cat Hair Loss
2. Parasites – Unseen Invaders Leading to Fur Loss
3. Dermatitis – When Skin Inflammation Causes Hair Loss
4. Hormonal Imbalances – An Overlooked Cause of Hair Loss
5. Fungal Infections – A Stealthy Cause of Hair Loss

Reasons and Causes of Hair Loss in Cats
- Poor Diet
- Skin Allergies
- Food Allergies
- Fungal or Parasitic Causes
- Parasites – Unseen Invaders Leading to Fur Loss
- Fungal Infections – A Stealthy Cause of Hair Loss
- Dermatitis – When Skin Inflammation Causes Hair Loss
- Fleas and Ticks
- Stress
- Hypothyroidism
- Hormonal Imbalances – An Overlooked Cause of Hair Loss
- Urinary Tract Issues
- Dry Skin
- Allergies – The Hidden Culprit of Cat Hair Loss
Managing and Preventing Hair Loss in Cats
- Preventing Feline Hair Loss
- How to Help Your Stressed Cat
Veterinary Consultation
- Contact Your Vet if Your Cat is Losing Hair
“Discover the common causes of hair loss in cats, from allergies and parasites to hormonal imbalances. Learn how to prevent and manage feline hair loss effectively, and know when it’s time to consult your vet to keep your cat’s coat healthy and thriving.“