Uterine fibroids are more dangerous after pregnancy

Generally speaking, women with uterine fibroids can get pregnant if the diameter of the fibroids is less than 4 cm. However, if the diameter of uterine fibroids grows to more than 4 cm before pregnancy, the chances of pregnancy growth, degeneration, miscarriage, and premature birth will increase; or if the diameter of the fibroids is less than 4 cm, but the growth location is not good, such as the uterine cavity, cervix, or it compresses the fallopian tubes and affects infertility, it is best to have surgery to remove the fibroids before pregnancy. People who have undergone traumatic surgeries such as myomectomy or cesarean section may have scars on their uterus, which is medically called a scarred uterus. All scarred uteri must be careful during pregnancy and childbirth.

As we all know, after a woman becomes pregnant, her uterus gradually enlarges until the fetus is full-term, and can even increase to 700 times that of a non-pregnant woman. The uterine muscle fibers also lengthen to hundreds of times until delivery, and the fetus is delivered by strong uterine contractions. A normal uterus is competent for these heavy tasks, but for a scarred uterus, the uterus is relatively weak due to the reduced elasticity and toughness of the scarred local tissue and increased fragility. If pregnancy begins before the uterine wound is fully grown, as the fetus grows and develops in the uterus, the uterine scar may rupture due to excessive tension on the uterine wall, which will seriously endanger the safety of the mother and fetus.

It is recommended that women with scarred uterus adhere to contraception and consider pregnancy 2 to 3 years after surgery. It is best to go to the hospital for a careful check-up before pregnancy to ensure that the body is in good condition and the scar has healed well. Regular prenatal check-ups should be performed during pregnancy. If conditions permit, hospitalization can be performed two weeks before the expected date of delivery.

The delivery method of scarred uterus depends on the specific situation. If the pregnant woman is in good physical condition, the scar heals well, the thickness is within the normal range, and the fetal position and birth canal are normal, natural delivery can be attempted, otherwise a cesarean section should be performed.