Addison's disease in dogs can be life-threatening if unrecognized but is very manageable with appropriate long-term treatment.
Addison's disease creates a welfare challenge through its diagnosis phase rather than its managed state. The chronic, fluctuating nature of the early disease - periodic weakness, GI signs, lethargy, and exercise intolerance - is often attributed to other conditions and may be investigated for months before correct diagnosis. During this period, dogs experience recurring episodes of significant malaise. The Addisonian crisis represents an acute welfare emergency - electrolyte imbalances cause profound weakness, cardiovascular collapse, and can be fatal without emergency treatment. The welfare contrast between undiagnosed and diagnosed Addison's disease is dramatic: once diagnosed and on appropriate hormone replacement, dogs typically return to full vitality and normal quality of life. Awareness of the condition and its characteristic presentations allows faster diagnosis and prevents prolonged unnecessary suffering.