Donating Blood While Breastfeeding. Increased dehydration could cause vein clotting, vomiting, and severe headaches. This thick rulebook also covers donating blood.

You are pregnant and or breastfeeding. In the past 12 months has had a blood transfusion, blood products, an organ or tissue transplant; There are also donation restrictions while breastfeeding as it may lead to the low quality of breast milk.