Thickness of lining of the vagina on the tenth day of menstruation

A woman's body will undergo significant changes during menstruation, especially in the uterus, where there will be many changes. The most obvious of these is that the thickness of the endometrium will continue to change. A woman's endometrium continues to thicken as her menstrual period lasts. Therefore, women can also judge whether their uterus is healthy based on the thickness of the endometrium. So, what is the thickness of the lining of the body on the tenth day of menstruation?

1. Endometrial Thickness During and Before and After Menstruation

The endometrium is the mucous membrane covering the uterine cavity and is one of the most differentiated tissues in the human body. The thickness of the normal endometrium changes with the menstrual cycle and is not constant. The specific numbers are: 1. Menstrual period: the functional layer of the endometrium falls off and the basal layer remains. 2. Proliferative phase: The endometrium thickness reaches 1-3mm on the 6th to 14th day of menstruation. 3. Secretory phase: The endometrium thickness reaches 5-7mm on the 15th to 28th day of menstruation.

2. Normal endometrial thickness

The normal thickness of the endometrium is generally between 5-10MM, and the thickness of the endometrium is also different at different stages.

3. Endometrial Thickness at Different Stages

1. Ultrasound manifestations of proliferative endometrium

In the early stage of hyperplasia, the endometrium appears as a thin echo line, about 4-6 mm thick. In the middle stage of hyperplasia, the endometrium gradually shows three strong echo lines, and the low echo area in between is two layers of functional endometrium with a thickness of about 8-10mm. In the late stage of hyperplasia, the three lines and two zones are more clearly visible, and the thickness of the endometrium increases to about 9-10 mm.

2. Secretory phase: After the corpus luteum is formed, the endometrium shows a secretory reaction under the action of progesterone. The secretory phase is also divided into three stages: early, middle and late.

3. Menstrual period: day 1-4 of the menstrual cycle. At this time, the levels of estrogen and progesterone decrease, activating the synthesis of prostaglandins in the endometrium. Prostaglandins can stimulate the contraction of the uterine muscle layer and cause continuous spasm of the spiral arterioles in the functional layer of the endometrium, resulting in a decrease in endometrial blood flow. The area of ​​damaged, ischemic, and necrotic tissue gradually expands. Tissue degeneration and necrosis, increased permeability of the blood vessel wall, and rupture of the blood vessels lead to the formation of hematoma at the bottom of the intima, which promotes tissue necrosis and exfoliation. The degenerated and necrotic endometrium mixes with blood and is discharged to form menstrual blood. The thickness of the endometrium can reach 8-10mm.