Mild severity
Seborrhea (Dandruff & Flaky Skin)
Flaky, scaly or greasy fur that is usually a symptom of another underlying problem rather than a disease in its own right.
⚠️ Common symptoms
Seborrhea describes skin that flakes, scales or turns greasy because the normal cycle of skin-cell growth and shedding (keratinisation) has gone into overdrive. It comes in two forms: dry seborrhea (seborrhea sicca), which shows as classic white dandruff, and oily seborrhea (seborrhea oleosa), which leaves the coat greasy and often smelly. Many cats show a mix of both.
The single most important thing to understand about feline seborrhea is that it is almost always a symptom, not a diagnosis. A cat that has stopped grooming its lower back because it is overweight or arthritic will build up flakes there; a cat with fleas, ringworm, allergies or an internal illness will flake because the skin itself is upset. Even skin cancer such as cutaneous lymphoma can first appear as stubborn scaling.
That is why treatment looks past the flakes to the reason behind them. Vets check for parasites, fungal infection, allergies and metabolic disease, and address the weight and mobility problems that stop good grooming. Alongside that, medicated shampoos, omega-3 supplements and regular brushing keep the coat comfortable while the underlying issue is brought under control.
🔍 Causes
True primary seborrhea (an inherited keratin defect) is rare in cats. Far more often it is secondary to something else: obesity or arthritis that stops a cat grooming its back, poor diet or fatty-acid deficiency, allergies, parasites, ringworm, or internal disease such as diabetes, hyperthyroidism or skin lymphoma. Low humidity and over-bathing can worsen dry flaking.
🛡 Prevention
Feed a complete, good-quality diet, keep parasite prevention current, and help overweight or elderly cats stay groomed by brushing the areas they can no longer reach. Regular brushing spreads natural oils and lifts loose flakes before they build up.
💊 Treatment
Because seborrhea is usually secondary, the real fix is finding and treating the underlying cause — parasite control for fleas or mites, an antifungal for ringworm or Malassezia, diet changes for allergies, or managing an internal disease. Symptom relief comes from medicated anti-seborrhoeic shampoos, omega-3 fatty-acid supplements, and better hydration and grooming.
⚕️ Medical disclaimer
- This information is educational only and is not a substitute for veterinary advice.
- Symptoms overlap between conditions — only a vet can diagnose accurately.
- Never withhold treatment or self-medicate based on information found online.
- When in doubt, call your vet. Early intervention almost always leads to better outcomes.