%0 Case Reports %T Hereditary persistence of fetal hemoglobin. %A Sharma DC %A Singhal S %A Woike P %A Rai S %A Yadav M %A Gaur R %J Asian J Transfus Sci %V 14 %N 2 %D Jul-Dec 2020 %M 33767547 暂无%R 10.4103/ajts.AJTS_71_16 %X Hereditary persistence of fetal hemoglobin (HPFH) is a benign condition in which significant fetal hemoglobin production continues well into adulthood, disregarding the normal shutoff point after which only adult-type hemoglobin should be produced. The percentage of incorrect expression might be as low as 10%-15% or as high as 100% of the total hemoglobin, usually higher in homozygotes than in heterozygotes. The present case is a typical example of homozygous HPFH.