Normal progesterone level on the third day of menstruation

The normal value of progesterone on the third day of menstruation. Progesterone, also known as corpus luteum, is the key biologically active estrogen secreted by the uterus and ovaries. The level of progesterone is closely related to the normal menstrual period and normal reproductive process of women. The progesterone level in a woman's body is not stable and will not change. The level of progesterone changes relatively throughout a woman's menstrual cycle. The third day of the menstrual period is the follicular phase of the physiological cycle, and the body's progesterone level generally fluctuates between 0.2-0.6ng/ml or 0.6-1.9nmol/L.

The role of progesterone

Progesterone is a natural estrogen metabolized by the corpus luteum of the ovary. It has a significant histological effect on the uterine wall stimulated by estrogen in the body and is essential for maintaining pregnancy. The main function of progesterone is to make the glandular ducts in the uterine mucosa grow and develop, the uterus swell, and the endometrium thicken in the middle and late menstrual cycle, so as to prepare for the combination of sperm and egg. After the sperm and egg combine and embed, they form an embryo, reduce the fluid regulation of the pregnant uterus, inhibit its activity, and allow the fetus to grow safely. Under the interaction with estrogen, it promotes the full growth of breasts and prepares for milk production. If the progesterone level is too low during pregnancy, it can easily lead to miscarriage, premature birth, stillbirth, etc.

Symptoms of low progesterone during pregnancy

Some women of childbearing age may have low progesterone levels during pregnancy, which may manifest as hypothyroidism, fibrocystic breasts, gallbladder disease, hypoglycemia and other symptoms that are not easy to detect. Some may also experience irregular menstrual cycles, weight gain, vaginal dryness, breast pain and other symptoms. If women are careful, they can discover these symptoms. When pregnant women have low progesterone levels, infertility is a more obvious symptom. When the egg and sperm combine to produce a test tube embryo, the progesterone level is a male hormone that delays the shedding of the uterine membrane. If the progesterone level is low in early pregnancy, it may cause miscarriage. Therefore, when women are preparing for pregnancy, they need to do a good job of pre-pregnancy check-up and check whether their progesterone levels are normal through progesterone level checks.

Adverse effects of low progesterone during pregnancy

Low progesterone during pregnancy is a risk factor for gynecological diseases in women. Progesterone levels play a very important role for women. Pregnancy and test tube embryo development are related to progesterone levels. Progesterone helps stimulate uterine growth during fertility and promotes fetal development by increasing blood flow to the uterus and tissues. After the egg is released from the ovary, it attaches to the uterus. In theory, an egg cell is fused with a male's sperm to produce an IVF embryo. Progesterone is a male hormone that can delay the shedding of the uterine membrane. If the progesterone level drops significantly in the first few weeks of pregnancy, it may cause miscarriage. Therefore, low progesterone levels during pregnancy can cause great harm to women's bodies, and preparing for pregnancy can easily lead to infertility; during pregnancy, low progesterone levels can increase the risk of miscarriage.