Sickle cell disease is a group of inherited red blood cell disorders. Healthy red blood cells are round, and they move through small blood vessels to carry oxygen to all parts of the body. In someone who has SCD, the red blood cells become hard and sticky and look like a C-shaped farm tool called a “sickle”. Types of sickle cell disease Different types of sickle cell diseases are : Hemoglobin SS disease. Hemoglobin SC disease. Hemoglobin SB+ (beta) thalassemia. Hemoglobin SB 0 (Beta-zero) thalassemia. Hemoglobin SD, hemoglobin SE, and hemoglobin SO. Sickle cell trait. What causes sickle cell disease ? Sickle cell disease is caused by a mutation in the gene that tells your body to make the iron-rich compound that makes blood red and enables red blood cells to carry oxygen from your lungs throughout your body (hemoglobin). Sickle cell disease is caused by a problem in the hemoglobin -beta gene found on chromosome 11. The defect forms abn...
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