Is the thickness of the endometrium normal after menstruation?

The thickness of the endometrium after menstruation is generally 1-4 mm, which is within the normal range. The thickness of the endometrium changes with the menstrual cycle. It is thinnest just after menstruation and gradually thickens thereafter.

After menstruation, the endometrium is in the early stage of hyperplasia, and the thickness at this time is usually 1-2 mm. As the ovary secretes more estrogen, the endometrium begins to repair and proliferate, reaching 2-4 mm on the 5th to 7th day of the menstrual cycle. If an ultrasound is performed immediately after menstruation, the endometrial thickness of most women will be within this range. A thin endometrium may affect the implantation of a fertilized egg, but the thickness at the end of menstruation is a physiological change and there is no need to worry too much.

In rare cases, the endometrium may exceed 4 mm after menstruation. This may be related to endocrine disorders, such as polycystic ovary syndrome, which causes estrogen to continuously stimulate intimal hyperplasia. There may also be organic lesions such as endometrial polyps and submucosal fibroids, resulting in incomplete endometrial shedding. If multiple examinations reveal abnormal thickening of the endometrium after menstruation, or are accompanied by symptoms such as heavy menstrual flow or prolonged menstruation, it is recommended to seek medical attention as soon as possible to investigate the cause.

Endocrine balance can be maintained through regular work and rest and a balanced diet. Soy products, nuts and other foods contain phytoestrogens, and eating them in moderation can help with endometrium health. Avoid excessive dieting or strenuous exercise, which may interfere with hormone secretion. If you plan to become pregnant or have menstrual abnormalities, it is recommended to regularly monitor changes in the endometrium under the guidance of a doctor.