To donate blood, your weight is important to ensure your safety and the effectiveness of your donation. You must be generally fit and well, aged between 17 and 65, and weigh between 7 stone 12 lbs (50kg) and 25 stone (158kg).

In the UK, men can donate blood every 12 weeks, while women can donate every 16 weeks. However, those with genetic haemochromatosis may be able to donate every six weeks.

If you have recently travelled outside the UK, you may need to wait before donating. The waiting period depends on the country visited and the risk of infections such as malaria. Checking DHSC guidelines or consulting a donation advisor is recommended if you're unsure

Some medications may affect your eligibility to donate, while many do not. If you are taking medication, it's best to check with DHSC Blood Donation services before booking an appointment.

To ensure a smooth donation experience, stay well-hydrated by drinking plenty of water, eat a nutritious meal beforehand, avoid alcohol, and bring your donor card or identification with you.

The donation process is straightforward. Upon arrival, you will register and undergo a short health screening to ensure eligibility. The actual donation takes about 5-10 minutes, after which you can rest and enjoy some refreshments before leaving.

After donating, it's important to drink plenty of fluids for the next 24 hours, avoid strenuous exercise, eat a healthy meal to restore energy, and rest if you feel unwell. If needed, seek medical advice.

Appointment availability depends on demand, location, and the specific blood type needed. If no slots are available, keep checking, as new appointments are frequently added.

If you are unable to attend, it’s best to reschedule as soon as possible so another donor can take your place and help maintain the blood supply.

Blood stocks can fluctuate, and urgent appeals occur when there is a shortage of certain blood types. If you receive an appeal, donating as soon as possible can help save lives.

Booking an appointment is easy and can be done online. Regular donors may also receive reminders when it's time to donate again.