| Obligatory | Must not donate if: Has a sickle-cell or thalassaemia syndrome.  | 
| Discretionary | 1. Eyes: Even if has a sickle-cell or thalassaemia syndrome, accept. 2. All tissues: Donors with traits for abnormal haemoglobin, accept.  | 
| See if Relevant | Anaemia Sickle-Cell Trait Thalassaemia Trait Transfusion  | 
| Reason for Change | A link to 'Transfusion' has been added. |