Endometrium refers to the lining of the uterus, and an endometrial thickness of 0.9cm in the week before menstruation is mostly normal.
The week before menstruation is usually the secretory phase of a woman, which is the 15th-28th day of the menstrual cycle, and the normal thickness of a woman’s uterine lining during this period ranges from 0.7 to 1.6 cm. Therefore, an endometrial thickness of 0.9cm in the week before menstruation is usually normal.
The thickness of a woman’s uterine lining varies with the ovarian cycle, and therefore varies at different times of the cycle. If a woman’s endometrial lining thickness is not within the normal range, and she has symptoms such as abnormal vaginal bleeding and low menstrual flow, it is recommended that she seek medical attention.
If a woman has an abnormal endometrial thickness, it is recommended that she consult her doctor and seek treatment.