It's important to note that blood and black flakes in a cat's ears are signs of a potential health issue that needs to be addressed by a veterinarian.
Possible causes include:
* Ear mites: Tiny parasites that can cause inflammation, itching, and dark debris in the ears.
* Ear infections: Bacterial or yeast infections can cause redness, swelling, discharge, and sometimes blood.
* Allergies: Food or environmental allergies can trigger inflammation and ear problems.
* Foreign objects: Small objects can get stuck in the ear canal and cause irritation and bleeding.
* Polyp: A growth in the ear canal that can cause discharge and bleeding.
* Trauma: An injury to the ear can cause bleeding and other symptoms.
If you see blood and black flakes in your cat's ears, please contact your veterinarian immediately. They can diagnose the underlying cause and recommend appropriate treatment.
Please remember that I am an AI and cannot offer medical advice. Seek help from a professional vet.