What does it mean if the belly feels hard and tight frequently at 37 weeks?

Apr 19, 2023 Source: Cainiu Health

Dr. Lv Aiming

Introduction

Frequent hardening and tightening of the abdomen at 37 weeks may be caused by fetal movement, late-pregnancy false contractions (Braxton Hicks contractions), or preterm labor, requiring targeted treatment. A detailed analysis is as follows: At 37 weeks, pregnancy is typically in the late stage. During this period, the fetus has usually grown considerably and its movements within the uterus can cause uterine smooth muscle expansion, resulting in frequent sensations of abdominal hardening and tightness.

At 37 weeks of pregnancy, frequent hardening and tightening of the abdomen may be caused by fetal movement, late-pregnancy false contractions (Braxton Hicks contractions), or preterm labor. Targeted treatments depend on the specific cause, as detailed below:

1. Fetal Movement

At 37 weeks, pregnancy is typically in the late stage. The fetus has usually grown considerably and its movements within the uterus can cause uterine smooth muscle expansion, leading to frequent hardening and tightening of the abdomen. This is a normal physiological phenomenon and generally requires no excessive concern; symptoms usually resolve spontaneously over time.

2. False Contractions in Late Pregnancy

Irregular and infrequent uterine contractions are considered false contractions. During this period, increased progesterone levels lead to a higher number of oxytocin receptors in the uterus, making it more sensitive and resulting in such sensations. Pregnant women are advised to change body positions frequently, avoid prolonged standing or sitting, and may apply a warm water bottle to the lower abdomen for relief when appropriate.

3. Preterm Labor

If the fetus in utero is affected by external forces, it may trigger preterm labor. This type of labor causes real contractions, leading to abdominal hardening and tightening. In such cases, prompt medical attention at a hospital is recommended to prevent adverse effects on maternal and fetal health.

In addition to the above, approaching delivery can also cause frequent abdominal hardening and tightening at 37 weeks. When this occurs, pregnant women should pay close attention and seek hospital evaluation to determine the underlying cause and receive appropriate treatment.

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