Serious Illness

Common conditions that mean you are unable to donate blood include:

Heart disease
Cancer
Stroke
Inflammatory bowel disease
Chronic lung disease (except asthma)
Chronic fatigue syndrome

Other important information:

High blood pressure, high cholesterol

You can donate while being treated for high blood pressure or high cholesterol levels. If your medication changes you have to wait at least 4 weeks before donating.

Diabetes

You can donate blood if you have diabetes provided you have no complications caused by diabetes and do not need insulin treatment. If your medication changes you have to wait at least 4 weeks before donating.