Can I still get pregnant with a thin uterine lining?

Under normal circumstances, in the presence of adequate estrogen, an endometrial thickness of less than 8 mm on ultrasound examination is considered “thin endometrium” in women. Thin endometrium is a common gynecological condition. So, can a woman with a thin endometrium still conceive? Below, we address this question.

Can a woman with a thin endometrium still get pregnant?

In general, regardless of the underlying cause, an abnormally thin uterine wall (i.e., thin endometrium) impairs a woman’s ability to conceive. Endometrial thickness varies dynamically throughout the menstrual cycle. Menstruation results from shedding of the endometrium; thus, the endometrium is at its thinnest immediately following menstruation—measuring thickness at this time holds little clinical significance. Under estrogenic stimulation, the endometrium begins to proliferate—a phase known as the proliferative phase. As ovulation approaches, the endometrium continues to thicken; this period is termed the periovulatory phase. After ovulation, the endometrium enters the secretory phase, during which it becomes soft and receptive, facilitating embryo implantation. Consequently, endometrial thickness peaks around the time of ovulation.

Additional Information: Causes of Thin Endometrium

1. Low Estrogen Levels

Insufficient estrogen and progesterone levels, ovulatory dysfunction, and growth hormone deficiency may all contribute to thin endometrium. Local factors—including endometrial injury, intrauterine adhesions (Asherman’s syndrome), or partial endometrial loss—may also play a role. Additionally, some women develop thin endometrium following induced abortion, before the endometrium has fully recovered. Therefore, diagnosis of thin endometrium must be made only when estrogen levels are within an appropriate physiological range. If estrogen levels are suboptimal, an endometrial thickness < 8 mm reflects estrogen deficiency—not primary endometrial pathology—and should not be diagnosed as “thin endometrium” per se.

2. Endocrine Imbalance

The endometrium is the inner mucosal lining of the mammalian uterus and responds to both estrogen and progesterone. Accordingly, it undergoes marked cyclical changes across the estrous/menstrual cycle. Estrogen induces uterine hypertrophy, while progesterone triggers characteristic early-pregnancy changes in the endometrium—or alters its functional properties to enable decidualization. Thus, severe endocrine dysregulation disrupts hormonal homeostasis, leading to disordered endometrial cyclical changes and ultimately resulting in thin endometrium.

Above is an overview addressing whether pregnancy remains possible with a thin endometrium. We hope this information is helpful to you.