Endocrinology (hormones)

There are several common endocrine or hormonal disorders found in dogs and cats.

For example, hypothyroidism – or low thyroid hormone levels – is often diagnosed in dogs.

The opposite is true for cats, which are frequently diagnosed with hyperthyroidism, which is – as you might have guesed – overly high levels of circulating thyroid hormones.

There are many symptoms you might see if your pet has an endocrine disease of some type. They include (but aren’t limited to!)

  • Abnormal energy levels – either high, or low, levels of activity and energy.
  • Abnormal drinking, urinating, and/or eating behaviors
  • Excessive panting
  • Skin disorders
  • Weight gain or loss


This is a photo of a patient with serious skin problems due to multiple endocrine diseases.

If your pet’s behavior, weight, or eating/drinking patterns seem abnormal to you – and note that they can change gradually – be sure to schedule an appointment to have him or her checked out. Many hormonal diseases can be managed once they’re diagnosed, adding long, happy years to your pet’s life.