Endometriosis is when excess endometrium lining of the uterus that normally grows in preparation for implantation of the egg, does not completely
shed during menstruation.
It is this lining that is
shed during menstruation.
In a normal menstrual cycle, a balance between the hormones estrogen and progesterone regulates the buildup of the lining of the uterus (endometrium), which is
shed during menstruation.
Not exact matches
During menstruation, the uterine lining that has built up throughout the month
sheds.
Women
shed tears significantly more often
during menstruation, when there is a low chance of conceiving, he notes.