Pregnancy is a miraculous journey, a life is nurtured and grown in the mother's body, and in the process, the mother's physiological characteristics have undergone earth-shaking changes, the most striking of which is the uterus. From the size of a small duck pear to a huge container at term, the womb carries the miracle of life and shows us the wonder of life.
The initial state of the uterus:
Before pregnancy, it is difficult to imagine how the uterus has gone from a small, light organ sleeping in the corner of the abdomen like a small duck pear to a spacious space that can accommodate the fetus, amniotic fluid and other rich contents. The uterus before pregnancy is small and exquisite, weighing 50 grams and having a volume of only 7 cm x 45 cm x 35 cm.
Changes in the uterus during gestation:
As the pregnancy progresses, the uterus begins to undergo amazing changes. At term, the weight of the uterus has increased 20 times to 1,000 grams, and the size has reached a huge level of about 35 centimeters long, 25 centimeters wide, and 22 centimeters thick. Inside the uterus, it can hold 5,000 ml of fetal water, amniotic fluid and other life sources.
During pregnancy, the position of the uterus also gradually rises. At 3 months of pregnancy, the floor of the uterus can be felt at the upper pubic bone2 3 transverse fingers;By 4 months of gestation, the floor of the uterus is located in the middle of the umbilicus and pubic bone;In the 5th month of pregnancy, the bottom of the uterus is flush with the umbilicus, and the abdomen bulges from the outside, forming a distinct pregnant woman's body shape.
The vicissitudes of life and the adjustment of the womb:
At 31 weeks of gestation, the floor of the uterus is already between the umbilicus and the xiphoid process of the sternum, and in order for the fetus to have enough room to grow, the uterus begins to show amazing elasticity. And at term, the floor of the uterus descends to the position of 2 3 transverse fingers below the xiphoid process, which is optimally prepared for childbirth. At this time, when the baby's head enters the pelvis, the floor of the uterus can be lowered to create a more favorable environment for delivery.
The struggle of the uterus to contract:
In order to protect the smooth delivery of the fetus, the uterus plays an important role during childbirth. Strong contractions not only help the baby pass through the birth canal, but also reduce the risk of postpartum hemorrhage. The uterus becomes the only organ in the body with three layers of muscles, and it contracts vigorously during childbirth, like a guardian who opens the door to life.
Smart Adjustment of the Cervix:
In order to reduce the resistance of the uterus during childbirth, the tissue opening of the cervix gradually extends up to the lower uterine segment from the second trimester. This intelligent adjustment allows the uterus to adapt more flexibly to the growth needs of the fetus, creating a more relaxed environment for childbirth.
Pregnancy is a feast of life, and the change of the womb is one of the most magnificent scenes. From tiny to huge, from sleeping to exerting, the womb has witnessed the miracle of life, providing the warmest and safest harbor for new life. The gorgeous transformation of the womb makes us deeply feel the greatness of life, and also makes us more awe and cherish this hard-won gift. In this magical and warm process, we praise the mothers who gave birth to life and pay high respect to their greatness.
Pregnancy