Progesterone 18.16 μg/L on day 48 of pregnancy is generally normal.
Progesterone is a sex hormone secreted by the female endocrine system, generally by the corpus luteum. After pregnancy, due to the influence of human chorionic gonadotropin, the corpus luteum will continue to secrete progesterone, which is conducive to maintaining a normal pregnancy. The normal value of progesterone in pregnancy is usually 14-21 μg/L, so 18.16 μg/L of progesterone on day 48 of pregnancy is normal.
Progesterone inhibits uterine contractions on the basis of the action of estrogen, facilitates the growth and development of the embryo and fetus, and transforms the endometrium from the proliferative phase to the secretory phase, which is conducive to the attachment of fertilized eggs. It can also promote the development of mammary gland follicles and prepare for breastfeeding after delivery. Therefore, in the clinic, after pregnancy, we need to take regular obstetric examination, if the value of progesterone is abnormal, we need to give targeted treatment under the guidance of the doctor.