| Includes | Psoriatic Arthritis  | 
| Obligatory | Must not donate if:  | 
| Discretionary | a) If mild, the venepuncture site is unaffected and only using topical treatment, accept. 
 accept. 
 accept.  | 
| See if Relevant | Autoimmune Disease  | 
| Additional Information | Psoriasis is primarily a skin condition caused by an autoimmune process. Sometimes the disease is treated with powerful drugs and/or ultraviolet radiation to suppress the underlying autoimmune process. This may be with treatment with PUVA, methotrexate, ciclosporin, hydroxycarbamide etc. and this may alter the body's defence mechanisms to infection.  | 
| Reason for change | The text has been further updated to ensure consistency with other DSG references to immunosuppression.  | 
| Donor Information | If you wish to obtain more information regarding a personal medical issue, please contact your National Help Line.  | 
This entry was last updated in:
WB-DSG Edition 203 Release 74