ರಕ್ತಹೀನತೆಯು ಯಾವುದರಿಂದ ಉಂಟಾಗುತ್ತದೆ?

Anaemia is a shortage of red blood cells or of haemoglobin in them, which reduces the oxygen the blood can carry. It is most often caused by iron deficiency, and symptoms include tiredness and pale skin.