Is uterine bleeding during pregnancy dangerous?

The article was professionally consulted by Specialist Doctor II Pham Thi Tuyet Mai - Obstetrician and Gynecologist - Department of Obstetrics and Gynecology - Vinmec Hai Phong International General Hospital.

Uterine bleeding can occur at any stage of pregnancy, especially during the first trimester. In the early stages, bleeding may appear in 1-2 weeks from conception due to changes in the endometrium preparing to receive the egg for implantation, so it is not dangerous. The cases of uterine bleeding in early pregnancy are usually due to the following causes:
Threat of miscarriage: is bleeding that occurs from about 4 to 12 weeks of pregnancy because the embryo has not firmly attached to the uterine wall. . Accompanying symptoms are back pain, heaviness in the lower abdomen,... Stillbirth: an abnormal case during pregnancy that causes stillbirth in the mother's womb. The cause is often due to chromosomal disorders, in addition to mechanical shocks, infections,... Bleeding is the first sign of the body's rejection of the fetus.

Ectopic pregnancy: commonly known as an ectopic pregnancy, pregnant women have vaginal bleeding with sharp pain in the lower abdomen. This is a possible cause of death if an ectopic pregnancy ruptures without prompt treatment. The subjects at risk of ectopic pregnancy are usually people with a history of abortion, genital infections or ever having an ectopic pregnancy. Fetal pregnancy: is a medical condition when the fetal components such as the amniotic sac and placenta develop too quickly and do not correspond to the embryo, causing the placental spines to rapidly degenerate, creating fluid-filled sacs that stick to each other. bunch of grapes. These injuries will damage the eggs, but the placenta is still nourished by the mother's blood. Characteristic signs of ectopic pregnancy are vaginal bleeding that is dark brown or red in color, persistent or massive bleeding. Subclinical high hCG, no fetal heart rate.

In addition, cases of uterine bleeding in the later stages of pregnancy are often caused by:
Placental abruption: is a condition where the placenta separates from the uterine wall before the fetus is born. life. In this case, it is necessary to closely monitor the status of the fetus and mother as well as the uterine contractions, if the fetus is mature, the doctor may consider inducing labor. Placenta previa: Normally during pregnancy, the placenta attaches to the front, back and bottom of the uterus. However, if for some reason such as old surgical scars, uterine deformities, the placenta will stick low to the waist of the uterus to partially or completely cover the hole in the uterus. This will obstruct the path of the fetus during labor and cause bleeding when there is separation between the placenta and the uterus.

Uterine and cervical bleeding are not uncommon during pregnancy, and many do not require treatment. However, vaginal bleeding is still a symptom of dangerous diseases, which can affect both mother and fetus, so pregnant women need to go to medical facilities for timely treatment. especially in the first months of pregnancy. Cases of uterine bleeding that need to be treated by a specialist include:
Ectopic pregnancy: a case that will need urgent surgery to protect the fallopian tubes. The cases of immature pregnancy can be treated with drugs. Threatened preterm birth: this case will be recommended to rest with treatment with drugs to help prevent uterine contractions. Other cases also need to be closely monitored to avoid complications.

Vinmec International General Hospital currently provides a full package of maternity services for pregnant women. When registering for this program, pregnant women will be monitored and examined by qualified doctors, regularly notified by the staff before the scheduled date of examination, ultrasound, and testing. Pregnant women can rest assured and relax during pregnancy, without having to worry about missing appointments and making appointments.
Dr. Tuyet Mai has over 30 years of experience in examination and treatment in the field of Obstetrics and Gynecology, especially in lower-line surgery, family planning, specialized laparoscopic surgery, and multi-surgery management. severe and difficult such as:
Hysterectomy, hymenectomy Surgery for uterine fibroids, cervical cancer Cervical cancer vaccination Cervical cancer early detection Cervical electrocautery Examination and treatment endocrine therapy
For more information, please contact the hospitals and clinics of Vinmec health system nationwide