What are the effects of uterine fibroids growing after pregnancy?

Many women will find the presence of uterine fibroids during pregnancy, which can't help but make many female friends panic, and they are also worried that the uterine fibroids will grow larger. So, do you know what effects will be caused by the enlargement of uterine fibroids after pregnancy? What are the causes of uterine fibroids during pregnancy?

Uterine fibroids are benign tumors. However, as the uterus and fetus gradually grow larger after pregnancy, the blood supply to the uterus becomes more and more abundant, so that the fibroids can get sufficient nutrition and their size will increase rapidly. The enlarged fibroids will deform the uterine cavity, restrict the movement of the fetus, and cause malposition of the fetus. Only by going to the hospital for regular check-ups can the location and size of the fibroids be determined, and the doctor will give you advice.

The exact cause of uterine fibroids during pregnancy is still unknown. Based on the fact that they are more common in women of childbearing age, and that fibroids stop growing after menopause, or even shrink and disappear, it is suggested that the occurrence of uterine fibroids may be related to female hormones. Androgens can cause uterine muscle cells to proliferate and hypertrophy, the muscle layer to thicken, and the uterus to enlarge. Female hormones act through corresponding hormone receptors.

The content of estrogen receptors in uterine muscle tissue changes with different estrogen levels during the menstrual cycle. The content of estrogen receptors and estradiol in uterine fibroid tissue is higher than that in normal uterine muscle tissue.

However, the content of hydroxysteroid dehydrogenase is low, so the amount of estradiol converted to estrone is small. During pregnancy, placental lactogen promotes the effect of estradiol on fibroids, so the growth of uterine fibroids is accelerated. At the same time, ovarian function and hormone metabolism are regulated by higher nerve centers, so the activity of nerve centers may also play an important role in the onset of fibroids.