Sickle cell disease (SCD) affects 20 million globally, with standard treatments including hydroxyurea, voxelotor, pain management, and BMT. Haplo-HSCT and gene therapies offer alternatives when MSD BMTs are unavailable. SCD causes chronic hemolysis, inflammation, and premature death, with supportive care aiming to reduce disease progression. BMT is effective but has complications like GVHD, and barriers include donor availability and financial constraints. Gene therapy shows promise with reduced SCD-related complications but faces issues like cost and accessibility. Haplo-HSCT, with improved responses in trials, may serve as an alternative.