what it is if hemoglobin is low
Your hemoglobin must be at least 12.5 grams per deciliter in order to donate blood. Since in giving a pint of blood you give away both hemoglobin and iron, you are not allowed to give a blood donation if your hemoglobin level already is low. Thatâs why you were turned away. It may be that your hemoglobin level was low because your iron levels are low. Women who are menstruating can develop low iron and low hemoglobin levels because they lose blood every month. You should have your doctor check your hemoglobin and your iron levels. If they are low, your doctor may perform further tests to find out why.