Progesterone 31 nmol/L is normal if the woman is in the luteal phase, early pregnancy, and abnormal if the woman is in the follicular phase, menopause, or mid and late pregnancy.
The normal value of progesterone, for women of childbearing age, usually varies cyclically. In the follicular phase of the menstrual cycle, the normal value of progesterone is 0.5-2.3 nmol/L. In the luteal phase of the menstrual cycle, the normal value of progesterone is 6.4-79.5 nmol/L. Therefore, a progesterone level of 31 nmol/L is normal in the luteal phase, otherwise it is abnormal.
For pregnant women, the normal value of progesterone in early pregnancy is 32.6~140 nmol/L, in mid pregnancy is 62~262 nmol/L, and in late pregnancy is 206.7~728 nmol/L. This value is normal if you are in the early stage of pregnancy, otherwise it is abnormal.
If there is an abnormal progesterone test result, it is recommended to consult a doctor in time for a professional physician to make a judgment and handle the situation accordingly.