Does the endometrium thicken during pregnancy?
Jul 05, 2025
Source: Cainiu Health
Dr. Zhang Lu
Introduction
Under normal circumstances, the endometrium thickens during pregnancy. If endometrial thickening is accompanied by abnormal vaginal bleeding, abdominal pain, or other symptoms after pregnancy, ectopic pregnancy or threatened abortion should be considered, and prompt medical evaluation is necessary. At the same time, pregnant women should maintain healthy lifestyle habits, avoid strenuous exercise and excessive fatigue, and attend regular prenatal checkups.
Generally, the endometrium thickens during pregnancy. The detailed explanation is as follows:
After conception, in order to provide a suitable environment for embryo implantation and development, the endometrium undergoes a series of changes under the influence of hormones such as progesterone. Among these changes, thickening of the endometrium is an important manifestation. The thickened endometrium provides a soft and nutrient-rich foundation for the embryo, better supporting the implantation and subsequent growth of the embryo. This is an adaptive adjustment made by the body to nurture new life and is a normal physiological phenomenon.
If endometrial thickening is accompanied by abnormal vaginal bleeding, abdominal pain or other symptoms after pregnancy, ectopic pregnancy or threatened abortion should be considered, and medical attention is recommended for evaluation. Meanwhile, pregnant women should maintain healthy lifestyle habits, avoid strenuous exercise and excessive fatigue, and attend regular prenatal checkups to monitor the condition of the endometrium and fetal development, ensuring a safe pregnancy.
