How dangerous is sickle cell anemia?

More info needed. Patients with sickle cell anemia have greater tendency for severe anemia and infection. Usually children have more difficulties. Sometimes frequent transfusion is needed to assist in crises, or to suppress sickle hemoglobin and decrease sickling issues which can be very painful. Hydroxyurea is used to help symptoms and to increase fetal hemoglobin, vaccinations, and antibiotics help. See MD.