GENERAL HISTOLOGY

Detailed explanation-1: -Females are not capable of making new eggs, and in fact, there is a continuous decline in the total number of eggs each month. By the time a girl enters puberty, only about 25% of her lifetime total egg pool remains, around 300, 000.

Detailed explanation-2: -At birth, there are approximately 1 million eggs left. By the time you reach puberty, only about 300, 000 remain. The number of eggs you have continues to decline as you age and menstruate each cycle. Fertility also declines with age due to the decreasing number and quality of your remaining eggs.

Detailed explanation-3: -When you are born, this number has reduced to around two million and by the time you reach puberty and begin menstruation (start your periods) you will have somewhere between 300, 000 and 500, 000 eggs remaining. At menopause, you will have 1, 000 to 2, 000 eggs remaining.

Detailed explanation-4: -Because many eggs start to develop but die off before being ovulated, a woman goes through roughly 300, 000-400, 000 eggs in their reproductive years, but only ovulates 300-400 eggs. The average woman runs out of eggs and starts menopause around the egg of 52.

Detailed explanation-5: -The study published by the University of St. Andrews and Edinburgh University in Scotland found that women have lost 90 percent of their eggs by the time they are 30 years old, and only have about 3 percent remaining by the time they are 40.