The thickness of the lining of the uterine cavity, the endometrium, appears to vary with the ovarian cycle. The thickness of the endometrium is about 0.5 mm during menstruation, about 1 to 3 mm during the pre-ovulatory period, and about 3 to 10 mm during the post-ovulatory period.
For women of childbearing age, with the exception of breastfeeding and pregnancy, the ovaries will undergo cyclic changes once a month, which is also known as the menstrual cycle. The thickness of the lining of the uterus goes from thin to thick and back again as the menstrual cycle progresses, and this varies from person to person.
If the menstrual cycle is 28 days, the first 4 days are the menstrual period, the 5th to 14th days are the pre-ovulatory period, and the 15th to 28th days are the post-ovulatory period. Pre-ovulation and post-ovulation can be further divided into three stages: early, middle and late. The three stages of pre-ovulation correspond to a normal thickness of the endometrium of about 1 to 2 millimeters, 2 millimeters, and 2 to 3 millimeters, and the three stages of post-ovulation correspond to a thickness of about 3 to 5 millimeters, 6 to 7 millimeters, and 8 to 10 millimeters.
If the thickness of the endometrium exceeds the normal standard, attention should be drawn to it, and the patient should go to the hospital as soon as possible to complete the examination, make a clear diagnosis, and carry out the targeted treatment in a timely manner.