What Are the Signs & Symptoms of Cat Thyroid Problems?
Hyperthyroidism and hypothyroidism are conditions that affect cats with thyroid disease. These conditions have classic signs that owners, especially of older cats, should be aware of. These symptoms could also indicate problems unrelated to the thyroid, so any change in a cat's behavior should be reported to a vet. While hypothyroidism isn't considered life threatening, according to the Cornell Feline Heath Center, untreated hyperthyroidism can lead to heart failure (see Resources).
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Weight Loss (or Gain)
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Unexplained weight loss is a common indication a cat, particularly one middle-aged or older, may be suffering from an overactive thyroid gland (hyperthyroidism) or some other ailment. In the case of a thyroid gland not producing enough hormones (hypothyroidism), which is rare, unexplained weight gain is usually noticed instead.
Increased Appetite
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Coupled with the noticeable weight loss, increased appetite is a common sign something could be wrong with the thyroid or another internal system. A cat who continually eats but continues to lose weight should be seen by a vet.
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Hyperactivity or Sluggishness
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Restlessness and increased activity may be hard to notice because cats are playful by nature. But if the cat is unusually active when previously it was calm, or seems unable to settle down or sleep comfortably, that is a sign something is not right. Conversely, a cat suffering from hypothyroidism may appear more sluggish than normal.
Increased Fluid Intake and Urination
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This can indicate diabetes as well as a thyroid problem, especially in elderly cats. Tests by a vet will confirm if either condition exists.
Vomiting or Diarrhea
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A sign of many illnesses, vomiting and diarrhea must never be ignored. While the odd hair ball every now and then may be nothing more than a messy inconvenience, repeated vomiting or any diarrhea indicates something isn't right in the cat's digestive system and needs to be examined.
Dull Hair Coat
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This can be a sign of hyper- or hypothyroidism. The hair often looks unclean even if the cat grooms it, and may also start to fall out. Cats who previously had silky, manageable hair, may now find themselves covered in tangles and mats. The skin beneath the hair may be scaly too.
Muscle Weakness
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Cats are graceful by nature and good jumpers. While landing on their feet all the time may be a myth, they do maintain a certain balance in everything they do. A cat whose movements appear weak, uncoordinated, generally odd or in any way different from normal, should be examined by a vet.
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Resources
- Photo Credit Catherine Chant
