https://secure.blood.co.uk/c11_cant.asp
You should not give blood if:
1 | You've already given blood in the last 12 weeks (normally, you must wait 16 weeks). |
2 | You have a chesty cough, sore throat or active cold sore. |
3 | You're currently taking antibiotics or you have just finished a course within the last seven days. |
4 | You've had hepatitis or jaundice in the last 12 months. |
5 | You've had ear or body piercing or tattoos in the last 6 months. |
6 | You've had acupuncture in the last 6 months outside the NHS (unless you can produce the approved certificate from your acupuncturist or physiotherapist). |
7 | A member of your family (parent, brother, sister or child) has suffered with CJD (Creutzfeld-Jakob Disease). |
8 | You've ever received human pituitary extract (which was used in some growth hormone or fertility treatments before 1985). |
9 | You have received blood or think you may have received blood during the course of any medical treatment or procedure anywhere in the world since 1st January 1980. |