Hemoglobin 163g/L is normal for men as well as newborns, but is slightly high for women and children. 1. Hemoglobin is a special protein that transports oxygen within the red blood cells. Generally speaking, the hemoglobin level in adult males ranges from 120 to 165g/L, that of newborns is about 150 to 220g/L, the normal value in children is 120 to 140g/L, and that of adult females is 110 to 150g/L, or slightly higher if the person taking the measurements is a woman or a child. The normal value for children is 120-140g/L and for adult women is 110-150g/L. 2. Usually, a high hemoglobin value can be caused by mild hypoxia or dehydration, but it can also be caused by more serious pulmonary or congenital heart disease. Therefore, when the value is high, it is necessary to consult a doctor in time to determine whether the cause is pathologic or physiologic, and then treat accordingly. It should be noted that if it is confirmed that the high hemoglobin value is due to pathological reasons, there is no need to be too nervous, actively cooperate with the doctor’s treatment, and pay attention to balanced nutrition and sufficient rest.