The process of childbirth is undoubtedly one of the most important and exciting moments in a woman's life. Understanding its phases in depth can help many mothers-to-be know what to expect and how to prepare.
Childbirth is divided into several phases, each with different characteristics and processes, but all equally important for the arrival of the baby into the world. The first phase, dilation, is the longest and can last from several hours to days. But what exactly happens in each phase of childbirth and how does the process evolve towards birth? Below, we will delve into each of the phases in detail.
What is dilation?
Dilation is the process in which the cervix opens to allow the baby to pass through. The cervix, which is normally a narrow cylinder, must stretch and open to a diameter of approximately 10 centimeters, which is necessary to allow the baby's head to pass through.
During this phase, contractions begin mildly and increase in frequency and intensity. These contractions are necessary because they cause the cervix to open progressively.
Dilation phase
This phase can be further divided into two other stages: the latent dilation phase and the active phase.
Latent dilation phase
In this first stage, contractions are usually irregular but are beginning to be present. The purpose of these contractions is to soften and thin the cervix to facilitate its opening. In general, this stage is the longest of labor and can last from a few hours to several days, especially in first-time mothers.
At this stage, some women may barely feel any discomfort, while others may already experience pain. Contractions usually last between 30 and 45 seconds, with intervals of between 5 and 30 minutes.
Active dilation phase
When the 4-5 centimetres of dilation are reached, the active phase begins. Here the contractions become more regular, intense and painful. At this point, the cervix will open progressively until it reaches the 10 centimetres necessary to allow the baby to pass through.
The frequency of contractions increases to every 3-4 minutes and lasts about 60-90 seconds. It is important to note that during this phase, many women opt for epidural analgesia or other pain relief techniques.
expulsion phase
Once you reach 10 centimeters of dilation, the second stage of labor begins, known as the expulsion phase. This is when you must actively push to help the baby descend through the birth canal.
Contractions are usually very strong and occur every 2-3 minutes. The feeling of pressure in the lower back and perineal area is intense, and the mother feels the baby moving downwards. During this phase, the doctor or midwife will be monitoring the progress and guiding the pushing.
The amount of time a woman spends in this phase varies greatly. Some women may spend as little as 30 minutes pushing, while other women, especially first-time mothers, may be in this process for up to 2-3 hours. If the baby is not moving easily or if the time is dragging on too long, the medical team may intervene to facilitate delivery.
Delivery phase
After the baby is expelled, a new phase begins: it is time to expel the placenta. Although the baby has already been born, labor is not over. The uterus continues to contract, although at a lower intensity, to help detach and expel the placenta and the membranes surrounding the baby.
This process can take between 5 and 30 minutes. During this time, the doctor or midwife will be watching to ensure that the placenta is completely expelled. Any remaining fragments can lead to complications such as bleeding or infection. In some cases, uterine massage may be performed to help the uterus contract and release the placenta without problems.
Medical interventions during labor
Depending on how labor progresses, the medical team may choose to perform interventions to ensure the well-being of the mother and baby. Some of the most common tools are:
- Artificial rupture of the membranes: If your waters have not broken naturally, your doctor may decide to artificially break them to speed up the progress of labor. This procedure is quick and usually painless.
- Oxytocin administration: If contractions are not strong or frequent enough, oxytocin may be given to stimulate uterine activity.
- Episiotomy: In some cases, the doctor may decide to make a small cut in the perineum to widen the vaginal opening and facilitate the passage of the baby, especially if there is a risk of tearing.
In more complicated cases, such as when the baby is in an unfavorable position or there is a problem with its well-being, a cesarean section may be chosen.
When to go to the hospital?
Many first-time mothers wonder when is the right time to go to the hospital. While every birth is different, there are some clear signs that labor has begun:
- Regular contractions: If contractions occur every 5 minutes and last for at least an hour, it is time to go to the hospital.
- Water breaking: If your water breaks, even if there are no contractions, it is essential to go to the hospital to avoid infections.
- Bleeding: Any type of vaginal bleeding should be evaluated by a doctor as soon as possible.
Factors that can affect the duration of labor
The duration of the labor process varies greatly and depends on multiple factors. Some of the variables that can affect the duration of labor are:
- Whether it is your first pregnancy or not: In women who have had previous vaginal births, the process is usually faster.
- Baby position: If the baby is in an unfavorable position, such as breech or head up (occipito posterior position), the delivery process may be longer and more complicated.
- Uterine conditions: A cervix that is not completely effaced or that is too rigid can slow the dilation process.
Pain management
For many women, one of the main concerns during childbirth is pain. Fortunately, there are several techniques to manage it:
- Epidural analgesia: One of the most common and effective techniques involves administering medication to numb part of the body. This is done through a catheter inserted into the lumbar region.
- Non-pharmacological analgesia: There are alternatives that do not involve the use of drugs, such as breathing techniques, massage, hydrotherapy or even the use of birth balls to facilitate the process.
- Opiates: In some cases, opioid medications are administered to relieve pain, although without achieving the level of complete blockage provided by the epidural.
It is very important that a woman feels comfortable with the pain relief method she chooses, and she should remember that she has the right to change her mind throughout labor if she feels she needs to.
The birthing process is a unique and intensely personal experience. Preparation, both physically and mentally, can make a huge difference. For many women, knowing and understanding the stages of labour gives them a greater sense of control and calm at one of the most important times in their lives. With the right support, each stage of labour can be seen as another step towards the arrival of the baby – the most anticipated moment!