Sickle cell life span
Sickle cells usually die after about 10 to 20 days, compared to normal red blood cells, which live an average of 120 days. The bone marrow can't make new red blood cells fast enough to replace all the dying ones which causes anemia,low blood count that results in fatigue,shortness of breath and related symptoms.As the cells are made normally but die too rapidly,this is termed as haemolytic.