Register with The Aplastic Anaemia Trust Registering with the AAT helps us understand how many people are living with rare bone marrow failure in the UK, and helps us to support you with information, events and support services. I've beendiagnosed Register here If you're living with aplastic anaemia, PNH, or another rare bone marrow related condition. I'm supporting someone who has been diagnosed Register here Whether you're a parent, friend, family member or work colleague. I'm a clinician or health worker Register here To stay in the loop about our services or click here to refer a patient. Got questions? You can read in detail about why we're asking you to register and what we'll do with the information here. Manage Cookie Preferences