Endometrietillväxt

Endometrietillväxt, also known as endometrial proliferation, refers to the thickening of the endometrium, the lining of the uterus. This process is primarily regulated by hormones, particularly estrogen. During the menstrual cycle, rising estrogen levels stimulate the endometrial cells to divide and grow, preparing the uterus for potential implantation of a fertilized egg. This proliferative phase typically occurs in the first half of the cycle, following menstruation. Once ovulation occurs, progesterone levels rise, and the endometrium undergoes further changes, becoming secretory and more receptive to implantation. If pregnancy does not occur, both estrogen and progesterone levels decline, leading to the breakdown and shedding of the endometrium during menstruation. Abnormal endometrial growth can be a concern. Conditions like endometrial hyperplasia, an overgrowth of the endometrium, can increase the risk of uterine cancer and may be caused by hormonal imbalances, such as unopposed estrogen exposure. Conversely, insufficient endometrial growth, often due to low estrogen levels, can lead to irregular cycles or difficulties with conception. Monitoring and understanding endometrial growth is crucial for reproductive health.