Does normal pregnancy have trophoblast?

summary

Trophoblast is a kind of cell with trophoblastic function, which comes from the trophoblast outside the embryo. Trophoblast cells grow rapidly and form many hairy processes on the surface of embryo sac, which are called "villi". Trophoblast is mainly cytotrophoblast and syncytiotrophoblast. Intermediate trophoblast is an independent trophoblast type covering the morphological and functional characteristics of the above two types of cells, and is the main component of extravillous trophoblast. Does normal pregnancy have trophoblast? Next, I'd like to share my views with you.

Does normal pregnancy have trophoblast?

First, it is possible that trophoblastic tumors generally occur within the range of reproductive age, and tend to occur at both ends of reproductive age, that is, under 20 years old and over 40 years old. During this period, the ovarian function of women is not completely stable or has gradually declined.

Second, there is a certain relationship between oral contraceptives before pregnancy and the risk of gestational trophoblastic tumor. Women who took oral contraceptives before this pregnancy have a higher risk of gestational trophoblastic tumor, and the risk increases with the extension of oral contraceptive time. According to the survey, the incidence rate of pregnant women is higher than that of women. The prevalence rate of pregnant women was higher than that of primipara.

Third: pregnant women should supplement enough folic acid in the early pregnancy. Lack of folic acid in experimental animals can cause embryo death. It is speculated that maternal lack of folic acid may be related to the occurrence of trophoblastic tumor. Especially in the angiogenesis stage of embryo (13-21 days after conception), if folic acid and histamine acid are deficient in nutrients, the synthesis of thymine will be affected, resulting in vascular deficiency of placental villi and embryo necrosis.

matters needing attention

Before preparing for pregnancy, mothers must go to the hospital for a comprehensive physical examination to make sure that their physical condition is suitable for pregnancy. At the same time, they should also have regular prenatal examination during pregnancy to ensure that they can understand the physical condition of the fetus and their own health problems at the first time. When diseases occur, they must not be taken lightly and treated in time.