What kinds of cat behavior indicate thyroid problems?

Answer by  allymcbeal (29)

- Weight loss - this can be quite dramatic if not treated quickly. - Increase in appetite - Vomiting and diarrhoea - Lethargy and a reduced desire to play - Hair loss - Constipation - The coat and skin become dull and flaky - aggressive behaviour or over grooming - Frequent urination

Answer by  catlover76 (33)

Hyperthyroidism in cats is most commonly manifested by ravenous eating but still losing weight. Vomiting and diarrhea can also be less common symptoms.

Answer by  Emr (698)

If kitty is getting thin and is still eating (or is eating more), that is a sign of an overactive thyroid. Fat cats can sometimes have an under active thyroid.