What are the causes of bleeding at 29 weeks of pregnancy?

Bleeding at 29 weeks of pregnancy is usually associated with preterm labor, placental issues, cervical problems, or other causes. It is recommended to rest adequately and seek medical evaluation and treatment at a hospital when necessary. Specific analyses are as follows:

1. Preterm Labor

This generally refers to the period between 28 and 37 weeks of gestation and is mainly characterized by uterine contractions, slight vaginal bloody discharge, bleeding, abdominal pain, etc. Bed rest is recommended, along with close monitoring. Prompt hospitalization for fetal preservation treatment may be necessary when indicated.

2. Placental Issues

Conditions such as placenta previa, placental abruption, or vasa previa can cause bleeding. When the placental edge attaches near the internal cervical os, painless recurrent vaginal bleeding may occur as gestational age increases and the cervical os shortens. Immediate medical consultation is advised. Symptomatic treatments under medical guidance may include intravenous administration of medications such as magnesium sulfate injection and tranexamic acid injection to preserve the pregnancy.

3. Cervical Problems

Infection with human papillomavirus (HPV) or cervical lesions such as inflammation or polyps may lead to rupture of small cervical blood vessels, resulting in bloody discharge or vaginal bleeding. In cases of recurrent bleeding or infection, surgical intervention at a hospital may be required.

In addition, conditions such as coagulation disorders, vaginal cancer, or cervical cancer may also cause the aforementioned symptoms. It is recommended to promptly visit the gynecology department at a hospital to complete relevant examinations, identify the underlying cause, and actively cooperate with appropriate medical treatment.