How long does it take for an egg to be released from the ovary?

I believe everyone knows that having a child requires the combination of male sperm and female egg to form a fertilized egg. Families who are preparing to have children will pay special attention to the time when the female egg is released. The egg is released from the female ovary. Normally, women of childbearing age can release a mature egg every month. So how long does it take for the egg to be released from the ovary? Let's introduce it below.

When a woman is in her childbearing years, her ovaries release a mature egg every month, and the ovulation date is about 14 days before the next menstrual period. After the egg is released from the ovary, it is immediately sucked into the fallopian tube by the fimbria of the fallopian tube and waits for the arrival of sperm in the ampulla of the fallopian tube. The egg has the strongest fertilization ability within 15 to 18 hours after being released from the ovary, and can maintain its fertilization ability for about 30 hours. After that, the egg begins to degenerate, and its fertilization ability rapidly weakens and disappears.

An egg is a reproductive cell that is released from the female body every month. The eggs are present in the female's ovaries. Every month, one egg matures and is released from the ovaries. If sperm enters the fallopian tube at this time, the egg will be fertilized successfully and then move to the uterus to develop into an embryo.

Generally speaking, the follicle will be discharged when it reaches a diameter of about 20mm. Normally, we cannot see the egg before ovulation because it is very small. Only when it develops into a follicle can we see it under a microscope. At that time, it is already very large. The 10th to 14th day before menstruation is called the ovulation period.

A mature egg is generally larger than 20mm, and the smallest one is normal at more than 18mm. The growth from primary follicle to mature follicle can be divided into 8 levels. The first five levels are too small and take too long to grow, so they do not have much practical significance. The focus should be on the 6th level onwards. The diameter of the sixth-level follicle is 5mm; after 5 days, it grows to 10mm and becomes the seventh-level follicle; after another 5 days of development, it reaches the eighth-level follicle with a diameter of 16mm. The 8th level follicles are mature follicles.

Therefore, it takes a total of 10 days for the 6th level follicle to grow to the 8th level follicle, which is exactly the follicular phase in a menstrual cycle. Starting from 16mm, after another 2-3 days, it will develop into a 20mm follicle and the egg will be released.