Progesterone 15.5ng/ml does not necessarily affect the development of the fetus, it depends on which period the value belongs to, the normal range of progesterone is different in each period, such as in the fourth to sixth month of pregnancy may affect.
In the first trimester of pregnancy, the value of 4.73 to 50.74ng/ml is normal, so progesterone 15.5ng/ml is normal in this period, it will not affect the development of the fetus, but from the fourth to the sixth month of pregnancy, the value should be 19.41 to 45.3ng/ml, then the progesterone 15.5ng/ml is on the low side, which may affect the development of the fetus.
Progesterone is a hormone necessary for the maintenance of pregnancy, if the progesterone is lowered, the mother’s immune rejection of the fetus will occur, there is a risk of miscarriage, but also cause fetal development retardation, so when the progesterone 15.5 ng / ml in the fourth to sixth month of pregnancy, it may affect fetal development.
Therefore, when progesterone is low, we should pay attention to it and seek medical examination and treatment in time to avoid adverse consequences.