Elderly cats may
develop overactive thyroid and kidney disease, which can elicit extreme meowing.
Not exact matches
Unfortunately,
overactive thyroid treatment — particularly more extreme forms of treatment, such as surgery — may eventually lead one to
develop an underactive
thyroid.
If your cat is more than 10 years old, there's a good chance he has
developed hyperthyroidism (an
overactive thyroid gland), one of the most common endocrine diseases affecting older cats.