Heavy periods and blood donation

Usually yes, with a small check first. The finger-prick decides: if your haemoglobin passes comfortably, you donate, heavy flow alone is not a deferral. ## The short answer Monthly iron loss can drag haemoglobin low; the test on the day measures exactly that. If you are often borderline, iron-rich food in the weeks before helps. ## At the screening desk Tell the staff: Your flow pattern and any iron tablets. That conversation is confidential and takes a minute, it exists so the medical officer can clear you safely on the day. Everyone meets the same basics: age 18,65, weight 50 kg+, haemoglobin on target, feeling well today. Men donate every 3 months, women every 4, the rest rules, simply. Not sure about your case? Try the Can I donate? checker or read who can donate and the deferral list in plain words. Still weighing it? Is blood donation safe? and the honest side-effects list are straight answers, not brochure talk. ## The one line that matters The medical officer at the centre makes the final call on the day, with your name, your file and your actual reading in front of them. Use this page to walk in informed, not to overrule anyone. Related: iron levels and blood donation