Haemoglobinopathy
This is the field of study of hemoglobin disorders. There are hundreds if different variants of hemoglobin disorders.
A common misconception is that sickle cell afflicts black people only.Sickle cell disease occurs not only in Africa, also in South America, India and the Mediterranean (Thalassemia is more common in the Mediterranean)
Common hemoglobin disorders include sickle cell disease, thalassemias.
Sickle cell disease - These include hemoglobins that sickle under conditions of inadequate oxygenation common examples include (sickle cell anemia (SS), S+C, S-beta thalassemia.