What does scar pregnancy mean?

Scar pregnancy refers to when a woman with a history of cesarean section becomes pregnant again, the gestational sac may still be implanted at the original scar site, which can easily lead to heavy vaginal bleeding and uterine rupture in the late pregnancy. The risk is very high, no less than ectopic pregnancy, and it is also a headache for obstetricians. Pregnant women with a history of cesarean section must be alert to scar pregnancy when they become pregnant again.

Pregnant women must carefully choose the first delivery method and should not choose cesarean section easily; women who have undergone cesarean section should take contraceptive measures to prevent unwanted pregnancy; high-risk pregnant women with a history of cesarean section should undergo vaginal ultrasound examination in early pregnancy to determine the site of embryo attachment. If it is a scar pregnancy, the diagnosis should be made as soon as possible and the pregnancy should be terminated.

If you become pregnant again after a cesarean section, the fetus may implant on the uterine scar, which is medically called "scar pregnancy". It is a rare but extremely dangerous obstetric emergency, a type of ectopic pregnancy. Simply put, the fetus grows to a place where it should not grow.

In 2012, the latest research report pointed out that the incidence of "scar pregnancy" among women who underwent cesarean section was about 15%, and it was increasing year by year. There are two reasons for this. One is the increase in the cesarean section rate, and the other is the low contraceptive rate. Many people are averse to IUDs and oral contraceptives, and do not know how to use condoms correctly, resulting in unwanted pregnancies.

The severity of scar pregnancy is comparable to that of ectopic pregnancy. If the pregnancy is not terminated in time, it may cause heavy bleeding. If a woman becomes pregnant again after a cesarean section, in addition to the risk of scar pregnancy, she will also face the risk of rupture of the scar in the lower segment of the uterus, and the risk of placenta previa, placenta accreta, etc. will also increase, thereby increasing the possibility of postpartum hemorrhage.

Most women choose cesarean section when giving birth to their first child, so they must be wary of scar pregnancy. During a cesarean section, the doctor makes an incision in the uterus, takes out the baby, and then sews it up, leaving a scar.

There are often tiny cracks in this place, the uterine cavity and mucosal layer are incomplete, and there are gaps between the muscle layers. If the embryo happens to implant nearby, it will grow towards the muscle layer like a seed, grow roots that pass through the gaps and tear the muscles, easily causing uterine rupture or heavy bleeding. Therefore, for women with a history of cesarean section, regular check-ups and B-ultrasound tests are necessary in the middle and late stages of pregnancy. If risk factors are found, they should be admitted to the hospital for intervention as soon as possible.