Can a small uterus affect fertility?
Jul 13, 2024
Source: Cainiu Health
Dr. Zhao Xiaodong
Introduction
A uterus smaller than normal can affect fertility. The uterus is a thick-walled, hollow muscular organ shaped like an inverted pear, slightly flattened from front to back, approximately 7 to 8 cm in length, 4 to 5 cm in width, and 2 to 3 cm in thickness. When the uterus is smaller than normal, it is medically termed uterine hypoplasia, also known as infantile uterus. In this condition, the cervix is conical and relatively long, with a uterine body-to-cervix ratio of 1:1 or 2:3.
In general, whether a small uterus affects fertility can be analyzed based on whether its size falls within the normal range. If discomfort occurs, it is recommended to seek medical attention promptly. The specific analysis is as follows:
1. No effect
If a woman has a slightly smaller uterus but it still falls within the normal range—for example, about 7–8 cm in length—fertility is typically unaffected, provided the endometrium is healthy and capable of supporting embryo implantation and development.
2. May affect fertility
However, if the uterus is smaller than the normal range, it may not provide sufficient space for proper embryonic development, thereby increasing the risk of miscarriage, preterm birth, or other pregnancy complications. In such cases, fertility may be affected.
Each woman's situation is unique; therefore, any concerns regarding fertility should be addressed through professional medical evaluation. Maintaining a positive and optimistic attitude and following medical advice can improve the chances of a successful pregnancy.
