We explain the requirements that you have to fulfill in order to be Blood donor:

Who can donate blood?

In principle you can donate any healthy person, between 18 and 65 years, and with a minimum weight of 50 kilos. After 65 years, healthy people who want to continue being donors can consult their doctor, who is the most suitable to advise them about it.

Anyway, they will make you a test, in which you will be asked about diseases that you suffer or have suffered, treatments that you follow, medication, trips ... and there are some causes why you can not donate for a while, for example:

  • If you have recently traveled to an area where there is a danger of exposure to transmissible endemic diseases.
  • If you have a tattoo or a piercing less than four months ago.
  • If you have suffered an infection in the last week prior to donating.
  • If you have undergone surgery less than six months ago.
  • If you have had an endoscopy in the last four months.
  • If you are pregnant -during pregnancy, iron levels decrease due to the requirements of the fetus- or you have given birth less than six months ago, or if you are breastfeeding.

If you have menstruation, it is also better to wait, but as medical professionals will do a test that determines the level of hemoglobin, they will tell you if you are able to donate at that time.

Although some diseases, such as allergy, do allow for donation, provided that the person is not taking medication or more than 48 hours have passed since the vaccine, there are other pathologies that prevent permanent donation:

  • People who have tumors can not be donors.
  • Certain chronic diseases, such as AIDS or hepatitis B or C.
  • Any that can be transmitted through infected blood, such as malaria.

Can I donate blood if I am taking medication?

It depends on the type of drugs, so you should consult your specific case, since some medications do not alter the blood, but others do, so you can not donate until after you stop taking them.

Thus, contraceptives or pills to regulate blood pressure or cholesterol do not affect when donating blood; however, there are others like anti-inflammatory, and even a simple aspirin, that do alter the blood clotting, so it is convenient to wait between 10 and 15 days after finishing the treatment so that the blood is 'clean' of medication.

How often can I donate blood?

A healthy young person can donate every three or four months. The first time you are going to donate they will give you a 'donor card' Your data is recorded, so that you know the time since your last donation and, the next time you go to donate, you will only be asked a few questions to confirm that no circumstance of interest has changed, and they will check again. hemoglobin levels before performing the extraction.

Blood Donation at Mayo Clinic (November 2019).