What are the symptoms of scar pregnancy?

Many people may not know what scar pregnancy means. In fact, it is very easy to understand. This situation mainly occurs in women who are giving birth to a second child. Many women choose to have a cesarean section when giving birth to their first child. As we all know, cesarean section will leave a scar on the uterus. When pregnant with a second child, the fertilized egg just happens to implant in the uterine scar. This is called scar pregnancy. The following is a detailed introduction to the symptoms of scar pregnancy.

What are the symptoms of scar pregnancy?

Women are born to bear children. Childbirth is one of the most important things in a woman's life. However, pregnancy and childbirth for women are life-threatening things. Many women have caesarean sections for their first births, which causes scarring of the uterus, making it more likely that they will have a scar pregnancy the next time they become pregnant. So what are the symptoms of scar pregnancy?

1. Symptoms of scar pregnancy

Pregnant women who experience scar pregnancy generally do not have obvious discomfort symptoms in the very early stages of pregnancy. The clinical manifestations of 5 to 16 weeks are mostly painless, small amounts of vaginal bleeding. Some patients have mild abdominal pain, while some patients only experience abdominal pain.

Because there is no obvious discomfort, if the patient seeks medical treatment, the gynecologist cannot make a diagnosis during clinical examination because the size of the uterus is not significantly different from that of a normal pregnancy and the cervical examination is often normal. This brings trouble to the patient's early detection and early treatment.

2. Causes of scar pregnancy

The pathogenesis of scar pregnancy is still unclear, but it is generally believed that the fertilized egg may be implanted in the scar tissue through the tiny cavity between the endometrium and the cesarean section scar. The gestational sac is then surrounded by the muscle layer and fibrous tissue of the scar tissue and is completely isolated from the uterine cavity. It is currently believed that in addition to cesarean section, other uterine surgeries can also form tiny cavities between the endometrium and surgical scars, such as curettage and hysteroscopy.

The destruction of the endometrium and myometrium and poor scar healing after cesarean section are the predisposing factors for cesarean scar pregnancy. The increased number of cesarean sections, breech presentation cesarean sections, and suture hormones are all related to the occurrence of scar pregnancy.

In addition to cesarean section, repeated abortions, uterine operations such as hysteroscopy, myomectomy, in vitro fertilization and other assisted reproductive technologies may cause varying degrees of injury to the uterus, which will also form scars in the uterus.

3. Harms of scar pregnancy

Generally speaking, as long as there is a scar on the uterus, there is a risk of scar pregnancy if you become pregnant again. It is equivalent to a special ectopic pregnancy, in which the embryo grows on the muscle layer of the uterine scar. Depending on the type, there may be different medical outcomes. These medical outcomes depend on the month of termination of pregnancy, and may cause various dangers to the mother and fetus.

If conception occurs or the placenta is on the scar, where the blood supply is very rich, once bleeding occurs, it is likely to cause severe vaginal bleeding, endangering the life of the pregnant woman.