Reasons for cats scratching their ears:
1. Cats infected with ear mites will often scratch their ears. You should check the cat’s ears promptly to see if there are dark brown secretions and grease. .

2. When a small bug flies into the cat's ear and the cat feels uncomfortable, it will hit the ear with its paws and scratch the ear. The owner should use tweezers to gently pinch out the foreign object in time. If it cannot be removed, it needs to be removed in time. Seek medical attention.

3. If the cat is not bathed properly, causing water to enter the ears, the cat will keep shaking its head or scratching the ears, and the water needs to be wiped away with paper towels immediately.

4. If the cat gets into a fight or has its ears scratched by a foreign object, the wound will be painful and it will keep scratching its ears. The owner needs to clean and disinfect the cat’s wounds. If the situation is serious, it needs to be sent to the hospital for treatment immediately.
5. When a cat is allergic to food, causing itchy skin and scratching its ears, you should take the cat to the pet hospital for examination and treatment in time.