The NHS Blood and Transplant service has issued an urgent appeal for O Rh negative and B Rh negative donors to give blood now, after diminishing stocks following recent bad weather.

Donors with blood group O Rh negative are typically known as the “universal donor” as their blood can be given to patients with a different blood group. This can prove vital in an emergency situation when there may not be time for an immediate blood grouping test to be carried out. Approximately 7% of the population have this blood group.

Donors with the blood group B Rh negative are more often found in Black and Minority Ethnic (BME) communities. Only 2% of the population has this blood group.

The service says blood isn’t just needed in accidents and emergencies; many patients, such as those undergoing treatment for cancer and leukaemia, need regular blood transfusions.

Donated blood saves and improves lives. Each donation can potentially save the lives of three adults and just a teaspoon of blood could save the life of a newborn baby.

If you can help, please ring the Donor Helpline on 0300 123 2323 or visit www.blood.co.uk to register your details, find the venues and times for your nearest blood donation session. Or, just walk in, where you see our signs. New donors are always welcome.