The door of the work refers to the cervix. The cervix has to go through 2 stages of change at work: Stage 1: blurring = The neck gradually become thinner and shorter. Stage 2: Expansion = The cervix is gradually opening diameter. Photos below explain the changes of the cervix during labor process.Picture AB = The cervix is thick and long term. Typically, an initial stage of labour.Picture C = The cervix is removed, they become thinner and shorter.Picture D = The opening of the cervix is open after the disappearance. How the doctor will measure the diameter of the door from work The physician measures the diameter of the cervix using their fingers to calculate the width of the cervical opening. General reference, = If the diameter is about one slice of banana, then is 3 cm = If the diameter is about a soda can, then it is 7 cm = If the diameter of a size of donut, then is 10 cm. The door has to open at 10 cm before the baby can go through it. Why working hours is higher in the pregnancy of the 1, Compared with 2 pregnancy As mentioned above, the cervix has to go through 2 stages of changes before it is fully open. For those who are expecting their 1st pregnancy, the cervix must delete first .... then only those who expect to widen their subsequent pregnancy, the cervix is removed and expands at the same time. For this reason, the second pregnancy is faster and easier then the 1st pregnancy. How fast can work door open For those who are expecting their 1st pregnancy, the door opens generally 1 cm per hour. For those who expect their subsequent pregnancy, the door opens, usually 2 cm per hour. Under what conditions the door refused to open = If the cervix is very thick and long, which take long to open, compared to a thin neck and short. = If the child is over weight. A large baby is difficult to negotiate through the cervix. = If the contraction is weak and irregular. = If the bone of the pelvis is narrow and small. = A fibroid or cyst that is located next to the cervix can sometimes prevent cervical dilation. br br
