Sickle cell anaemia is a severe hereditary form of anaemia in which a muted form of haemoglobin distorts the red blood cells into a crescent shape at low oxygen level. It is commonnest among those of African decent.It is a group of disoders that cause red blood cells to become misshapen and break down.Attacks of pain,anaemia,swelling in the hands and feet etc...are its symptoms.
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