There was no statistical relationship between the grade of meibomian gland loss and gender (P=0.369), primary disease (P=0.779), donor source (P=0.687), kinship (P=0.510), HLA type (P=0.474), ABO-compatibility (P=0.390), gender consistence (P=0.652), source of stem cell (P=0.325), acute GVHD (P=0.823), skin GVHD (P=0.204), oral GVHD (P=0.355), liver GVHD (P=0.216), and lung GVHD (p=0.595). Here, ABO is linked to acute graft versus host disease.