There are so many symptoms that vary and are non-specific and they all develop slowly. This is because not enough thyroid hormone produced affects the metabolic function of many organ systems.

Other signs of thyroid disorder are slow heart rate (bradycardia), infertility, constipation, diarrhea and your Boxer cannot stands cold, always seeking a warm place to lie down.

It may also results in chronic skin disorders like dry skin and excessive hair loss, as well as other neurological and hormonal abnormalities.

A single symptom may not point to thyroid deficiency but a combination of them should make your veterinarian more suspicious of it.

Intervertebral disk disease

The disease causes back pain and makes your Boxer clumsy and walk like a drunkard. He might not want to climb stairs or play and would yelp when he is handled, petted or lifted. The disease affects his spinal disks and could end in paralysis.

Irritable Bowel Syndrome (IBS)

Boxers having IBS aren’t gaining weight, seem lethargic and have pale color mucus membrane in the mouth (oral mucosa) and eyes (eye scleras).

Monitor their stool for frank or occult blood and start with a blood test to check for hematocrit (abdominal bleeding), which could save their life. This condition can be caused by food allergy.