This interesting TED talk takes under 20 minutes to set out the history of Haemophilia B, some of the issues faced by people living with the conditions, before going on to explain what the future might hold in terms of treatment.
Prevalence of Haemophilia B in Scotland
| Severity range | Number of people in Scotland | Bleeding pattern | Inheritance | Other names |
| Severe (0 to less than 1% factor VIII) | 24 | Into joints, muscles, the head and after surgery | Sex-linked | Christmas Disease, Factor IX [9] deficiency |
| Moderate (1 to less than 5% factor VIII) | 43 | Into joints, muscles, the head and after surgery | Sex-linked | Christmas Disease, Factor IX [9] deficiency |
| Mild (5 to 40% factor VIII) | 57 | Into joints, muscles, the head and after surgery | Sex-linked | Christmas Disease, Factor IX [9] deficiency |
Symptoms and management of Haemophilia A + B
| Symptoms | Management | |
| Severe | Bleeding after injury and surgery, and joint bleeds for no apparent reason (spontaneous) | Prophylaxis and on demand treatment |
| Moderate | Bleeding after injury and surgery | On demand treatment. Prophylaxis normally only for surgery etc. |
| Mild | Bleeding after injury and surgery | On demand treatment. Prophylaxis normally only for surgery etc. |