Scotland Issues Amber Alert as Blood Stocks Hit Unprecedented Lows

The Scottish National Blood Transfusion Service (SNBTS) has issued an amber alert to hospitals across the country for the first time.

The warning comes as blood supplies drop to unprecedented levels due to a growing shortage of donors and increased use of Group O blood.

Under the new alert, medical staff are instructed to use Type O blood only when essential and to maximize the use of transfusion alternatives where possible. While the alert triggers hospital protocols to minimize non-essential usage, officials emphasized that critical medical care will continue unaffected.

According to SNBTS, hospitals will carry out urgent, emergency, or trauma surgery, as well as cancer surgery, transplant surgery, and blood transfusions for patients with long-term conditions.

Blood stocks have remained consistently below target levels for several weeks. Group O reserves have fallen below two days of supply on multiple recent occasions, whereas the service aims to maintain a steady five to seven days supply across all blood groups.

The pressure on Group O is significant because of its vital role in medical care. O-negative blood acts as a universal donor and can be given to anyone in an emergency when there is no time to establish a patient’s blood group. Meanwhile, O-positive is the most common blood type in the UK, with roughly 35% of the population possessing it.

To maintain adequate reserves, hospitals across Scotland require approximately 135,000 units of blood annually. Dr. Lorna McLintock, medical director at SNBTS, explained that meeting this demand requires appointment slots to remain fully booked throughout the year. However, national donor centers in Aberdeen, Dundee, Edinburgh, Glasgow, and Inverness have experienced a decline in participation, averaging only 85% filled appointment slots.

“To supply hospitals with the 135,000 units of blood they need each year to treat patients, appointments need to be fully booked all year round,” said Dr. Lorna McLintock, medical director at SNBTS.

The current emergency stems from a long-term downward trend in participation. Over the past decade, SNBTS reports a 24% drop in blood donors, equating to approximately 30,000 individuals, with the service facing particular difficulties in attracting younger participants. Currently, only about 2% of Scotland’s eligible population is signed up to give blood.

Debbie McNaughton, director of donor and transport services at SNBTS, noted that most active participants donate only once a year. Increasing that frequency to two or three times annually would provide essential resilience for the national supply. Regional leaders have also echoed these appeals; Highland and Islands MSP Maree Todd urged eligible residents to check for nearby donation sessions and book appointments.

“If they could be donating maybe twice or three times a year, that would hugely help to provide resilience for the blood supply,” said Debbie McNaughton, director of donor and transport services at SNBTS.

The amber alert has been implemented initially for a period of four to six weeks and will remain under close review. In addition to donor shortages, regional officials noted that factors such as staffing pressures and adverse weather have occasionally disrupted donation sessions.

Authorities are urging all healthy individuals aged 17 or over, particularly O-negative and O-positive donors, to schedule appointments via scotblood.co.uk or by calling 0345 90 90 999 to help rebuild national reserves.