Is it normal for the endometrial thickness to be 0.3 cm?

When many women have their annual physical examinations, those who want to get pregnant will specifically check the condition of their uterus. Some people have asked whether an endometrial thickness of 0.3cm is good or not, is it normal, and will it affect pregnancy? In response to such questions, the editor below will provide some detailed knowledge about the uterus. It is hoped that after understanding this, women will be able to correctly judge whether their condition is abnormal or not.

The endometrium is divided into three layers: the compact layer, the spongy layer, and the basal layer. The dense layer and spongy layer of the 2/3 endometrial surface are collectively called the functional layer, which are shed periodically under the influence of ovarian sex hormones. The basal layer is the 1/3 of the endometrium close to the myometrium. It is not affected by ovarian hormones and does not undergo cyclical changes.

The thickness of the endometrium changes cyclically with the ovaries, and other parts of the reproductive organs also undergo corresponding cyclic changes. The most significant changes are in the endometrium.

If the endometrium is thick, it is easy to have dysmenorrhea during menstruation and the fertilized egg is not easy to implant. This means that the endometrium is thicker than normal. The normal range is 0.2-1.0 cm.

What is the normal thickness of the female endometrium?

1. Proliferative stage

After menstruation, epithelial cells begin to proliferate from the broken ends of the endometrial glands and cover the surface of the uterine mucosa. Around the 5th to 9th day of the menstrual cycle, the endometrium is very thin, the glands are scattered and sparse, the glandular ducts are narrow and straight, and the glandular cavity surface is flat. During the 10th to 14th day of the menstrual cycle, the thickness of the endometrium becomes wavy, the glands and interstitium proliferate significantly, and the number of glands increases.

2. Secretory phase

From the 15th to the 19th day of menstruation, which is 1 to 5 days after ovulation, the endometrium continues to thicken and the glands further increase in size and curvature. Around the 20th to 24th day of the menstrual cycle, which is 6 to 10 days after ovulation, the endometrium shows a high degree of secretory activity, and the curvature and expansion of the gland reach a peak. In the late secretory phase, the thickness of the endometrium is about 5 to 6 mm.

3. Premenstrual period

Around the 25th to 28th day of the menstrual cycle, which is 11 to 14 days after ovulation, it is equivalent to the regression period of the corpus luteum. The glands and glandular epithelial cells begin to shrink, degenerate, and secretions dry up, showing a phenomenon of exhaustion, and the thickness of the endometrium decreases by 1/5 to 1/3.

Therefore, we don’t have to worry. The thickness of the endometrium cannot determine whether you can get pregnant. Whether or not ovulation occurs is the key to whether you can get pregnant. However, if a female friend finds that the thickness of the endometrium is abnormal after a pre-pregnancy check-up, she should receive appropriate treatment in time, otherwise it will affect future fertility.