Hypothyroidism and asymptomatic goitre do not prevent blood donation. You can donate blood after you have used thyroid hormone replacement therapy (e.g. Thyroxin®) for at least six months.
Acute, symptomatic inflammation and hyperactivity of the thyroid and treatment for this constitute a temporary obstacle to donation. You can donate blood when six months have passed since the drug therapy ended, you had surgical treatment or radioiodine therapy.
Would you like more information? Please call the free information number for blood donors on 0800 0 5801 (Mon to Fri from 8:00 a.m. to 5:00 p.m.).