endometrium

During this period, the placenta implants itself into the endometrium - the mucosal lining of the mother's uterus.

The endometrium is a membrane that lines the uterus and thickens every month to support embryo implantation.

Adenomyosis, when the endometrium, womb lining, grows within the womb's muscular wall, can cause:

The endometrium, which lines the uterus and is shed during menstruation, has also been linked to the immune system.

“The endometrium is inherently regenerative,” Dr. Griffith said.