In this webinar we discuss the approach to the patient with a bleeding disorder. A logical diagnostic approach to a coagulopathy is essential to reach a diagnosis promptly and to ensure the correct treatment can be initiated quickly, as affected patients can present in a critical condition. Primary haemostasis involves the formation of a blood clot by the action of platelets and secondary haemostasis results in the formation of a fibrin clot through the activation of clotting factors. Primary haemostatic disorders are associated with reduced platelet numbers (thrombocytopenia) or a functional platelet defect (thrombocytopathia) and usually present with petechial haemorrhages or mucosal haemorrhages. Secondary haemostatic disorders can be congenital or acquired and are more likely to present with intra-cavitary haemorrhages. This webinar is provided by BSAVA Education Partner IDEXX. A collection of IDEXX ‘topic of the month’ webinars is available here.