A transient ischaemic attack (TIA) is a warning sign that a debilitating stroke could occur unless preventive action is taken. People with suspected TIAs should be seen urgently in a specialist service that provides rapid assessment, preventive care and treatment. This article highlights the importance of seeking medical attention urgently for suspected TIAs. It examines how quickly a specialist TIA clinic investigates and treats TIAs. It also identifies factors that affect how quickly patients with TIAs seek medical attention.