Dear shanshan25,Sickle cell trait (Hemoglobin SC disease) is mostly a genotypic and not phenotypic state, meaning that it is carried in your genes, but has little effect on your physical condition. It is a mild form of Sickle cell disease and should not preclude you from having breast reduction and liposuction. Of course, consultation with your hematologist would be beneficial in terms of optimizing and clearing you for surgery. Good luck!