Why is my 10-year-old cat suddenly aggressive and attacking me?

Question

My cat of 10 years attacked me tonight for no reason. It really scared me. He is abnormally attached to me. This is the second time he has done this. He was abandoned when we rescued him. Pet's info: Cat | Mixed Breed | Male | neutered | 20 lbs

Joy Fuhrman, DVM, MBA, CPA · Accepted Answer

Sometimes this type of behavior that comes on suddenly can be due to an underlying medical condition such as hyperthyroidism. Your veterinarian can test Tabs blood to see if his thyroid levels are high and if so, recommend appropriate treatment.

Why is my 10-year-old cat suddenly aggressive and attacking me?

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