The corpus luteum during pregnancy: features and pathology

November 12, 2015

The corpus luteum during pregnancy: features and pathology

How does the corpus luteum?

Out of the egg from the follicle after ovulation is accompanied by the maturation of the corpus luteum. The beginning of this time of the endocrine glands give the granulosa cells of the follicle. As the formation of iron becomes yellow due to which got its name. The corpus luteum during pregnancy has several functions, one – before conception. By the beginning of the second half of the cycle in the gland produces progesterone, which is responsible for preparing the uterus for a possible pregnancy and childbearing. After fertilization, the corpus luteum begins to function as a full endocrine gland, it produces the necessary maturation placental progesterone. This is one of the most important factors prepare the female body for childbirth, under his influence, the endometrium grows, blocked the release of new eggs.

Dangerous if a failure of the corpus luteum during pregnancy?

To secure the embryo on the inner wall of the uterus is necessary that its inner layer (endometrium) was formed. Insufficiency of the corpus luteum, or hypothyroidism, leads to disturbances in the development of the endometrium. Too thin and not fully formed shell of the embryo can not be fixed. Also on low endometrium embryo is not capable of developing, pregnancy is terminated. If conception has not occurred, iron 12-14 days atrophies, and regular menstruation begins. Hypofunction yellow body raises serious concerns, pregnancy is a condition corrected by appointing a woman hormones. Vital functions of the endocrine glands time depends on the development of the placenta and fetus hormone human chorionic. Afterbirth (placenta) is usually matures to the 10th or 12th week of pregnancy, and are able to independently produce a sufficient amount of progesterone and estrogen. The ratio of progesterone production is changing in favor of the placenta, and corpus luteum during pregnancy retains some time supporting role.

What are the diseases of the corpus luteum?

Sometimes a temporary iron continues to produce small amounts of hormones until the child into the world, but often there is no need for it to 16th week after fertilization. Therefore, the absence of the corpus luteum of pregnancy at a later date should not disturb a woman, a role it has already fulfilled. It is not a disease and the presence of two glands, it only shows that the two burst follicle out two eggs. Normally, the corpus luteum during pregnancy reaches a size of 10 to 30 mm, a change in one direction or another are considered unfavorable. If it is less than 10 mm, it indicates a lack of development of cancer. In the case when the size exceeds 30 mm, it is likely to develop a cyst. The formation of the corpus luteum cyst delivers a lot of pain, but does not threaten the development of the pregnancy. Rarely, but there are complications. For example, the cysts rupture, which requires immediate surgery.

What will US?

Timely ultrasonography to assess the condition of the corpus luteum of pregnancy, the time to appoint a treatment for various pathologies of the endocrine glands.

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