What is the cause of a small amount of bleeding at 12 weeks of pregnancy?

Many pregnant women will experience a small amount of bleeding at 12 weeks of pregnancy. There are many reasons for this situation. It may be caused by normal pregnancy reactions, signs of miscarriage, or some problems in the female uterus. Faced with this situation, people need to pay special attention. Here we will explain in detail what is going on with a small amount of bleeding at 12 weeks of pregnancy.

Abdominal pain in early pregnancy is mainly due to the enlargement of the uterus and the stretching of the round ligament of the uterus. If it is in the abdomen, most of the time it will be located on one or both sides of the uterus in the lower abdomen, presenting as referred pain, dull pain or hidden pain, partial abdominal pain, bleeding, pelvic tenderness, drop in blood pressure and rapid heartbeat, pelvic mass, and the pain will become more obvious when walking a long distance or changing body position. If these pains last for a short time and then go away, it is normal and there is no need to worry.

However, if there is severe pain in the lower abdomen on one side, accompanied by vaginal bleeding or fainting, pregnant mothers should pay attention. This may be a sign of ectopic pregnancy or threatened abortion. Go to the hospital immediately to rule out hidden dangers such as ectopic pregnancy and threatened abortion.

Causes of vaginal bleeding during pregnancy

1. Implantation bleeding. If you have just become pregnant, when the fertilized egg implants on the wall of the woman's uterus, you may have slight vaginal bleeding in the next 1-2 days, but at this stage it is difficult to know whether the vaginal bleeding is caused by pregnancy.

2. Miscarriage or ectopic pregnancy. Light bleeding or vaginal bleeding may be a sign of miscarriage or ectopic pregnancy, especially if it is accompanied by abdominal pain or cramping.

3. Infection. A small amount of vaginal bleeding may also be caused by vaginal infection or sexually transmitted infection, which can cause the vagina and cervix to become infected and inflamed. The inflamed tissue will cause a small amount of bleeding after a cervical smear test, vaginal examination or sexual intercourse.

4. Placental problems or premature birth. If a pregnant woman experiences vaginal bleeding or a small amount of bleeding during the second or third trimester, it may be a sign of a more serious condition. Such as placenta previa, placental abruption (the placenta separates from the uterine wall before the baby is delivered), late miscarriage (before 13 to 28 weeks of pregnancy), or premature birth (before 28 to 37 weeks of pregnancy).

5. Normal signs of delivery. In the late pregnancy, which is 37 weeks, if you find vaginal bleeding at this time, such as the leucorrhea is sticky and contains blood, it is usually a case of spotting and you should inform your doctor.