Immune-mediated thrombocytopenia (IMT) is a serious condition in which the immune system destroys platelets, causing spontaneous bleeding and requiring immunosuppressive treatment with significant welfare implications for affected dogs.
IMT causes acute distress through spontaneous bleeding that can affect any body tissue including the brain. Dogs with severe IMT require hospitalisation and careful monitoring for internal haemorrhage. The immunosuppressive treatment necessary to control the condition — high-dose steroids — causes side effects including increased thirst, appetite, and urination, as well as muscle weakness with prolonged use. Balancing treatment efficacy against side effect burden requires careful dose titration. Dogs in remission have good quality of life, but the possibility of relapse necessitates owner vigilance for early signs of recurrence. Prompt veterinary attention for any unexplained bruising or bleeding in a dog can be life-saving in this condition.