Addison's disease (hypoadrenocorticism) is a serious hormonal condition in dogs that requires lifelong treatment. Good management is essential for the welfare and quality of life of affected dogs.
Addison's disease is a welfare concern both in diagnosis (often delayed until crisis) and in management (lifelong treatment dependency). Dogs experiencing undiagnosed Addison's may suffer for months with vague symptoms including lethargy, intermittent vomiting, and muscle weakness - these 'waxing and waning' presentations are a common reason for delayed diagnosis. Once well-managed, the prognosis is excellent, but owners must understand the emergency signs and carry crisis protocols when travelling.