What causes persistent mild abdominal pain at 38 weeks of pregnancy?

In general, persistent mild lower abdominal pain at 38 weeks of pregnancy may be caused by factors such as uterine enlargement and stretching, false labor contractions, fetal movement, preterm labor, or placental abruption. If discomfort occurs, it is recommended to seek medical attention promptly. The specific causes are analyzed as follows:

1. Uterine Enlargement and Stretching

As the uterus enlarges, it exerts pressure on surrounding tissues and ligaments, particularly noticeable in late pregnancy, which may cause pain. Supportive tools such as maternity support belts can be used in daily life.

2. False Labor Contractions

In late pregnancy, the uterine muscles become more sensitive, making false labor contractions more likely to occur. These may be accompanied by mild lower abdominal pain and a feeling of tightness in the abdomen. Adequate rest should be taken, and excessive fatigue should be avoided.

3. Fetal Movement

As the fetus grows, its movements within the uterus may cause a sensation of mild lower abdominal pain. Fetal movement is a normal phenomenon. If a significant decrease in fetal movement is noticed, a doctor should be contacted immediately.

4. Preterm Labor

Preterm labor may be triggered by intrauterine infection or uterine abnormalities, causing the uterus to enter a state of labor prematurely, resulting in mild lower abdominal pain. It may also be accompanied by symptoms such as vaginal bleeding or rupture of membranes. Immediate medical attention is required, and the doctor will assess whether measures to prevent preterm birth or preparation for delivery are necessary.

5. Placental Abruption

Placental abruption may occur due to abdominal trauma, leading to intrauterine bleeding and fetal hypoxia, which causes mild lower abdominal pain. It may be accompanied by vaginal bleeding, decreased or absent fetal movement. Immediate medical attention is advised, and under the guidance of a physician, medications such as progesterone soft capsules, dydrogesterone tablets, or estradiol valerate tablets may be used to support the pregnancy, or a cesarean section may be performed as directed by the physician to ensure maternal and fetal safety.

In daily life, pregnant women should attend regular prenatal checkups. If the pain intensifies or occurs frequently, prompt medical attention is recommended.