What causes persistent pain at the lowest part of the lower abdomen at 37 weeks pregnant, and what should be done?

Generally, persistent pain at the lowermost part of the abdomen at 37 weeks of pregnancy may be caused by factors such as contractions, appendicitis, gastroenteritis, placental abruption, or threatened miscarriage. Pregnant women can receive symptomatic treatment based on the specific cause. Detailed analysis is as follows:

1. Contractions

At 37 weeks of pregnancy, which falls within the late trimester, most pregnant women may experience irregular tightening sensations in the lower abdomen. These contractions are normal physiological contractions and are not accompanied by symptoms such as vaginal bleeding or fluid leakage. Symptoms usually improve with adequate rest. However, if water breaks or bleeding occurs, prompt medical attention is required for delivery.

2. Appendicitis

If the persistent pain is located at McBurney's point in the right lower abdomen, accompanied by tenderness or rebound tenderness and the pain remains localized, it may be caused by appendicitis. In severe cases, surgical removal of the appendix can be performed, possibly combined with a cesarean section to ensure the safety of both the newborn and the mother.

3. Gastroenteritis

If gastrointestinal mucosa becomes infected due to consumption of contaminated or spoiled food, inflammation-induced pain may occur. It is recommended to take medications such as cefixime tablets, cefuroxime axetil tablets, or amoxicillin capsules under medical guidance to control the infection and relieve symptoms.

4. Placental Abruption

Placental abruption can lead to intrauterine bleeding, causing severe lower abdominal pain. This pain is typically intense and continuous, often accompanied by bleeding, which further stimulates uterine contractions. Treatment may include medications such as methylergonovine maleate injection or oxytocin for injection, used under a doctor’s supervision.

5. Threatened Miscarriage

During a threatened miscarriage, the uterus may undergo irregular contractions, potentially leading to lower abdominal pain. Pregnant women may take vitamin E soft capsules or progesterone capsules under medical guidance for treatment.

If abdominal pain persists without improvement, timely medical consultation is necessary.