Hemoglobin F (fetal hemoglobin) is one of the several types of hemoglobin found in humans. It is the primary hemoglobin during fetal development, typically present from the 10th to the 12th week of gestation until six months postnatally. Hemoglobin F has a higher affinity for oxygen compared to adult hemoglobin, which is crucial for efficient transfer of oxygen from the maternal to the fetal circulation.
