What is the name of process when eggs start to disingrate and uterin walls shedding?

The process when eggs start to disintegrate and uterine walls are shed is called menstruation or menstrual bleeding. It occurs when the body sheds the lining of the uterus (the endometrium) and the unfertilized egg. This process is part of the menstrual cycle, which is a natural monthly cycle that occurs in women of reproductive age. Menstruation typically lasts for several days and is accompanied by bleeding, cramping, and other symptoms.