Addisons Disease in Dogs: Welfare Management Guide

Canine hypoadrenocorticism (Addisons disease) is an endocrine disorder causing cortisol and aldosterone deficiency, leading to life-threatening Addisonian crises if undiagnosed or unmanaged.

Key Facts

Addisons disease affects approximately 0.1% of dogs in general practice
Young to middle-aged females are most commonly affected
Signs include lethargy, vomiting, weight loss, and weakness, often waxing and waning
The Addisonian crisis involves severe collapse, bradycardia, and life-threatening electrolyte imbalance
Once diagnosed and managed, most dogs have excellent long-term quality of life

Welfare Considerations

Undiagnosed Addisons disease causes repeated episodes of profound weakness, nausea, and collapse, causing significant suffering. The condition is notoriously called 'the great pretender' because its vague signs mimic many other diseases, delaying diagnosis. Once appropriately managed with mineralocorticoid and glucocorticoid supplementation, dogs typically return to full quality of life. Informed owners who recognise early crisis signs can prevent emergency hospital admissions and acute suffering.

What You Can Do

Ask your vet to test for Addisons disease if your dog has recurrent vague illness
Learn the signs of an Addisonian crisis and keep emergency medication available if prescribed
Ensure consistent medication timing and do not miss doses without veterinary guidance
Carry a medical alert card for your dog when travelling, informing emergency vets of the diagnosis