I recently took my 7-year old female English mastiff to the vet for some blood work, because she wasn’t eating well–otherwise she appears to be healthy and looks great for her age. Urine tests were normal. The blood test, however showed that her platelet count was low. It was 87, and the normal lab values are 170-400. She’s not on any medication other than Advantage Multi Heartworm medication, occasional aspirin or Derramax for arthritis, neither of which she has had for several weeks, and estrogen for incontinence (she’s spayed).

Interestingly, I also have a 10-year old, diabetic Doberman, and routine blood tests showed that his platelet count was also low. His was 79.

What can be causing this? Neither dog has been exposed to ticks or other toxins. Both are on quality low carb/low fat/high protein diets–the Doberman has to be in order to keep his blood sugar under control. Both get multi-vitamins each day.