What is scar pregnancy?

Many people may feel unfamiliar with the term scar pregnancy, and even many mothers who have given birth may not be particularly clear about it. Scar pregnancy occurs in women who have undergone a caesarean section, so if it is your first pregnancy, you will not suffer from this disease. So what exactly are pregnancy scars? How can we prevent the occurrence of this disease?

1. Definition of scar pregnancy

Scar pregnancy refers to a situation in which a gestational sac implants in the original uterine scar during the next pregnancy in a woman with a history of cesarean section. This often leads to heavy vaginal bleeding and late uterine rupture. It is an abnormal pregnancy that is difficult to treat and is as dangerous as an ectopic pregnancy. It is one of the most headache-inducing problems for obstetricians. Most cesarean sections in medicine today use a transverse incision in the lower uterine segment (the lower half of the uterus). Normally, the location where the fetus implants should be the fundus of the uterus (the upper half of the uterus). The uterine tissue in this area is normal and generally there will be no problems.

2. Diagnosis of scar pregnancy

The reason why "scar pregnancy" is dangerous is that it is very good at "disguising itself". Due to structural abnormalities, the tissue in the uterine scar is much thinner than normal tissue and can be easily ruptured. Therefore, post-cesarean section uterine scar pregnancy is a very dangerous type of pregnancy, which is difficult to diagnose early and easy to misdiagnose.

The symptoms of "scar pregnancy" in the early pregnancy are almost the same as those of normal pregnancy, including a history of amenorrhea, enlarged uterus, positive HCG in blood and urine, and other normal early pregnancy symptoms. The difference is that patients with scar pregnancy may experience irregular vaginal bleeding after menopause. Uterine scar pregnancy can usually be detected through B-ultrasound, but this is also related to the doctor's experience. Some inexperienced doctors sometimes mistake scar pregnancy for normal intrauterine pregnancy.

3. Prevention of scar pregnancy

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.