People have ages and our body organs also have “ages”, and the ovaries, which are related to female reproduction, also have “ages”. How do we determine the age of our ovaries? How can we determine the age of our ovaries? One of the important tasks of the ovaries is to produce eggs to be combined with sperm for reproduction. The number of eggs in the ovaries is not constant. When a baby girl is still in her mother’s womb, at 20 weeks of gestation, there are about 6-7 million oocytes, with about 2 million left at birth and only 300,000 left at puberty. It is not known what causes the follicles to enter a track of autonomous development and atresia since the formation of the embryo, resulting in a gradual decrease in the number of follicles. The onset of menstruation in girls marks the beginning of the maturation track, after which 3-11 follicles develop together each month, and after recruitment and selection, only 1 dominant follicle reaches maturity and expels its eggs until menopause, when about 400-500 eggs are expelled during a woman’s lifetime, and the rest die out on the way to growth. In young women, at the peak of fertility, there are enough follicles in the ovarian pool to reach maturity. Over time, the number of follicles in the ovarian pool gradually decreases, and the quality of the remaining follicles decreases due to external environmental and other factors, and the ovaries begin to enter their later years. In the first 10 years of menopause, the ovarian reserve function begins to decline – the manifestations of ovarian “ageing”. These manifestations can be understood through blood tests for basal sex hormones, anti-Mullerian hormone and ultrasound for sinus follicle count on days 2-5 of menstruation. 1, Gonadotropin (FSH): basal FSH>10iu/l, FSH/LH>2-3.6, basal E2>80pg/ml, 2, Anti-Mullerian hormone (AMH): <0.5-1.1 n g/ml, 3, Number of sinus follicles: <8mm follicles in bilateral ovaries <5-7 Above these conditions show that ovarian reserve function begins to decline, as ovarian As the "age" of the ovaries gradually increases, the basal FSH also gradually rises. When the real age is less than 40 years old, 2 tests with basal FSH > 40iu/l are called premature ovarian failure, suggesting that the ovaries have reached early “retirement”. The normal age of menopause varies greatly among women and is related to genetics and nutrition. For women with fertility requirements, they should have children early when their ovaries are in good reserve, rather than waiting until their ovaries are close to “retirement”.