Will a blood donation lower my iron level?

Hemoglobin & Iron Deficiency

In the case of a blood donation or greater blood loss, iron that is important for the regeneration of hemoglobin is lost. If a donor has too little red blood pigment, i. H. if his hemoglobin value is too low or at the lower limit, he does not have sufficient iron reserves for increased regeneration of fully functional erythrocytes. A blood donation is then not possible at this point.

Your hemoglobin level (Hb level)

The hemoglobin limit for donating blood is at
Men:13.5 g / dl (= 135 g / l)
Women:12.5 g / dl (= 125 g / l)


If your hemoglobin level is found to be too low at a blood donation appointment, please talk to your doctor about this.

If the iron intake is too low, the human body can initially fall back on its own reserves, which is why iron deficiency and its typical symptoms usually only become noticeable very late.

Frequent symptoms of tiredness or exhaustion, nervousness, irritability or forgetfulness could be the first signs of iron deficiency. Of course, there are other diseases that show similar symptoms, so you should leave the exact diagnosis to your doctor.

Possible symptoms

If you have noticed several of the symptoms listed below, you should definitely have your blood values ​​checked by your doctor. The earlier you recognize the onset of iron deficiency, the better you can counteract it.

  • fatigue
  • forgetfulness
  • Difficulty concentrating
  • Nervousness, inner restlessness
  • general decrease in physical and mental performance
  • Loss of appetite
  • Gastrointestinal disorders
  • Fits of faintness
  • increased susceptibility to infection
  • Shortness of breath
  • Heart trouble
  • pale, rough, dry skin
  • brittle, flattened fingernails
  • chapped lips
  • severe hair loss, dull, split hair