Why does pain occur at night but not during the day before labor?

Generally, experiencing pain at night before labor but not during the day may be related to physiological uterine contractions, hormonal changes, fetal movement, dietary factors, or early signs of labor. If the pregnant woman has no other symptoms, there is usually no need for excessive concern. It is recommended to closely monitor the situation; however, if symptoms become severe, prompt medical evaluation at a reputable hospital is advised. The specific causes are analyzed as follows:

1. Physiological Uterine Contractions

Pregnant women often experience physiological uterine contractions before labor. During these contractions, the uterine muscle layer contracts, which may cause abdominal pain or a hardening sensation. During daytime when standing, gravity may reduce the perception of contractions, making them less noticeable. However, when lying down at night, with reduced gravitational influence, the pain may feel more pronounced. Usually, no special treatment is required—routine prenatal checkups and necessary prenatal screenings are sufficient.

2. Hormonal Changes

Hormone levels in pregnant women tend to be higher at night. Additionally, the quiet nighttime environment means fewer distractions, allowing the expectant mother to become more aware of uterine contractions and associated discomfort. It is recommended that pregnant women stay calm and pay attention to potential signs of labor, such as vaginal spotting (show) or regular contractions.

3. Fetal Movement

Fetal movements are normal during development. Increased fetal activity at night may lead to intermittent abdominal discomfort. This is considered a normal phenomenon and typically does not require special intervention.

4. Dietary Factors

Consuming spicy or raw/cold foods close to delivery may irritate the intestines and cause abdominal pain. Mild cases can be managed by adjusting the diet, such as eating smaller, more frequent meals. If symptoms such as nausea or diarrhea occur, timely medical consultation is recommended.

5. Early Signs of Labor

As delivery approaches, labor could begin at any time. Hormone levels rise at night, making contractions more perceptible, which may explain why pain occurs at night but not during the day. Pregnant women should maintain a positive mindset. If symptoms such as vaginal bleeding (show), irregular contractions, or rupture of membranes (water breaking) occur, they should go to the hospital promptly to prepare for delivery.

It is recommended that pregnant women avoid strenuous activities before labor, monitor fetal movements carefully, maintain a balanced diet, and avoid consuming spicy or irritating foods.