What is the cause of bleeding when pregnant?

If a woman bleeds from below during pregnancy, it means that she may have a threatened miscarriage, so it is quite dangerous. At this time, the woman must protect the fetus in time, otherwise she may have a miscarriage. Because bleeding during pregnancy is also called spotting, it can be said that it is a situation that only occurs when the fetus is unstable. So what is the reason for bleeding from below when pregnant?

What is the cause of bleeding in early pregnancy?

1. Implantation bleeding. When the fertilized egg implants in the uterine wall, you may experience slight bleeding for a day or two. Implantation of the fertilized egg occurs 6 to 7 days after fertilization, or even about 10 days. Recommendation: Regardless of the color of the blood, if abnormal bleeding occurs once a day, you must rest in bed for three days, avoid sit-ups and other exercises that involve the abdomen, and avoid holding urine, constipation and other situations that will increase intra-abdominal pressure.

2. Threatened abortion. Fetal chromosomal abnormalities, congenital uterine developmental abnormalities and acquired defects, immune system problems, infections and other factors can easily cause miscarriage. Recommendation: More than half of miscarriages may be caused by abnormalities in the embryo itself. Because humans have the ability to self-eliminate, if the pregnancy can continue, most fetuses are normal.

3. Ectopic pregnancy. Therefore, abnormal vaginal bleeding will occur at 7-8 weeks of pregnancy, and there may even be severe abdominal pain or shock due to massive intra-abdominal bleeding. The possibility of ectopic pregnancy needs to be considered. Recommendation: In the early stages of pregnancy, if ultrasound examination fails to detect the presence of an embryo in the uterus, a test should be performed to confirm the diagnosis and appropriate treatment should be given in real time.

4. Hydatidiform mole. Hydatidiform mole may cause abnormal vaginal bleeding, severe morning sickness, and even heart palpitations in the early stages of pregnancy. Recommendation: The treatment is to remove the hydatidiform mole by endometrial vacuum aspiration, and then track the chorionic gonadotropin index until it is normal for 3 consecutive weeks, and then track it again every month until it is normal for 6 consecutive months. If the index does not drop ideally, consider using chemotherapy. Strict contraception must be followed during the follow-up period, and pregnancy planning should be started after one year.

5. Cervical polyps, erosions or cervical lesions. When it comes to early pregnancy bleeding, many people tend to ignore the problem of the cervix. If the cervix becomes severely inflamed and erodes, or if there are already cervical polyps, it is easy for the surface capillaries to rupture due to changes in pregnancy hormones. Recommendation: Cervical smear tests should be done regularly before and after pregnancy; if there is bleeding in early pregnancy, the cervix should also be checked to see if there is any problem.