Normal childbirth: step-by-step management

In modern evidence-based obstetric practice, a physiological or normal birth is generally defined as a low-risk, term birth, when the pregnancy has proceeded without significant complications, the fetus is single, in a vertex presentation, and labor progresses spontaneously or without signs of threat to mother and child. NICE explicitly states that its intrapartum care guidelines are focused on pregnancies of 37-42 weeks, while the World Health Organization formulates recommendations for healthy, low-risk pregnancies. [1]

Modern documents increasingly less emphasize the word "normal" as something rigidly fixed. Instead, the logic of "positive birth experience" and "minimally sufficient interventions" is used. The World Health Organization emphasizes that most women want not only a safe birth, but also a clinically and psychologically safe environment, respectful communication, participation in decision-making, and a sense of control over their experiences. [2]

This leads to the main principle of modern labor management: if labor is progressing well, physiological factors will not interfere. But this doesn't mean "doing nothing." It means observing regularly, respectfully, and demonstratively, supporting the woman, allowing her to move, eat, and drink as she feels, choosing comfortable positions, and offering pain relief promptly, using interventions only when indicated. [3]

At the same time, it's important to remember that physiological birth is always a dynamic, not a fixed category. NICE specifically emphasizes that a woman or pregnant person temporarily transferred to a specialized care pathway due to a complication can return to standard care if the complication resolves. Conversely, a low risk at the onset of labor does not guarantee that this risk will persist until the baby and placenta are delivered. [4]

That's why a good article on physiological childbirth should describe not only "what is considered normal," but also the boundaries of that normal. Modern childbirth management isn't a struggle against nature or passive waiting, but attentive support with a willingness to quickly change tactics if signs of trouble arise. [5]

Table 1. When this article applies in full

Situation	Is the physiological birth model appropriate?
Pregnancy 37-42 weeks, low risk, single fetus, cephalic presentation	Yes
Spontaneous onset of labor, satisfactory condition of mother and fetus	Yes
Induction of labor, significant medical complications, multiple pregnancy, breech presentation	A separate tactic and a higher level of alertness are now needed.
The appearance of bleeding, pathological signs in the fetus, severe delay in progress	The physiological scenario is being revised

Source of table: NICE guidelines on intrapartum care, World Health Organization document on the management of labour and review of the physiology of normal childbirth.[6]

Basic principles of physiological labor management

The first principle is respect for a woman's choice and shared decision-making. NICE recommends discussing birth care preferences as early as possible, documenting them, and emphasizing that decisions can be changed at any time, including during labor. This is an important departure from the old model, which viewed childbirth solely as a medical process without the woman's full participation. [7]

The second principle is continuous emotional and practical support. The World Health Organization emphasizes that the presence of a companion of a woman's choice during childbirth enhances her experience and can improve outcomes. This is not a decorative element, but an evidence-based part of the modern model of obstetric care. [8]

The third principle is freedom of movement and the choice of a comfortable position. The World Health Organization recommends encouraging mobility and upright positions in low-risk women. NICE also supports avoiding the supine position as the standard and emphasizes the benefits of positions that a woman chooses based on comfort and effectiveness. [9]

The fourth principle is to avoid a package of routine interventions "just in case." The World Health Organization recommends against a package of active management to prevent delay in labor, routine amniotomy, and early amniotomy combined with early oxytocin in normally progressing labor. NICE 2025 also explicitly states that amniotomy should not be performed routinely if labor is progressing without complications. [10]

The fifth principle is to normalize the progress of labor without undue haste. The World Health Organization emphasizes that the latent phase can last up to 5 centimeters, and a dilation rate of less than 1 centimeter per hour should not be automatically considered abnormal. The American College of Obstetricians and Gynecologists goes even further and recommends not applying the criteria for active phase and cessation of dilation until at least 6 centimeters. This helps reduce the number of unnecessary interventions and cesarean sections. [11]

Table 2. What is recommended and what is avoided during physiological childbirth

Approach	Current status
Joint decision making	Recommended
An escort of the woman's choice	Recommended
Freedom of movement and upright postures	Recommended
Light food and drink as you feel when the risk is low	Recommended
Routine amniotomy	Not recommended
A package of preventative "active management" to speed up labor	Not recommended
Routine continuous cardiotocography in low-risk patients	Not recommended

Source of table: recommendations of the World Health Organization, NICE and ACOG. [12]

First stage of labor

The first stage of labor begins with regular contractions that cause changes in the cervix and ends with full dilation. StatPearls and other modern sources divide it into latent and active phases. But unlike older textbooks, it's more important today not to try to rigidly "force" a woman into the classic Friedman curve, but to understand that the pace before the active phase can be highly variable. [13]

The World Health Organization recommends considering the latent phase as the period up to 5 centimeters of dilation, and the active phase as a later stage, when dilation actually accelerates. The American College of Obstetricians and Gynecologists recommends considering the onset of the active phase no earlier than 6 centimeters and not applying active phase standards before this threshold. This difference explains why modern articles should be cautious about using numbers and not turning them into dogma. [14]

In normal labor, simple, physiological measures are helpful in the first stage of labor: warmth, showering, massage, breathing techniques, comfortable positions, walking, a ball, rest between contractions, and the presence of a support person. NICE recommends offering water as a pain relief option, and the World Health Organization supports non-pharmacological methods, including relaxation, breathing, music, and manual techniques such as massage and warm compresses. [15]

In low-risk women, fluids and food are permitted during labor based on how well they feel. The World Health Organization recommends oral fluid and food intake for low-risk women, and NICE also emphasizes the danger of hyponatremia from excessive fluid intake and unnecessary intravenous fluids. Therefore, the modern approach is not "drip everyone" or "drink nothing," but a prudent fluid balance. [16]

If progress is slowing, the entire context should be assessed first, not just the dilation figure. NICE recommends considering parity, dilation rate, contraction strength, station, and position of the fetal head. Only then should amniotomy be considered, and oxytocin should be used cautiously, with fluid and fetal heart rate monitoring. This approach is fundamentally different from the old habit of "speeding up everyone." [17]

Table 3. First stage of labor: useful measures and typical mistakes

What to do	Why is this necessary?
Allow movement and change positions	Improves tolerance of contractions and supports the physiology of labor
Offer fluids and light food as needed if the risk is low.	Maintains strength and comfort
Use shower, heat, massage, breathing techniques	Helps control pain without unnecessary interventions
Don't rush to diagnose "weak labor" before the active phase	Reduces the risk of unnecessary stimulation
Do not perform amniotomy routinely	Reduces the cascade of interventions
Do not administer intravenous fluids unless indicated.	Reduces the risk of fluid overload and hyponatremia

Source of table: recommendations of the World Health Organization, NICE and ACOG. [18]

Maternal and fetal monitoring

Modern monitoring during physiological labor is based on the principle of sufficiency. The woman and fetus are monitored regularly, but labor is not turned into a continuous technological procedure in the absence of risk factors. NICE emphasizes that routine continuous cardiotocography is not necessary for low-risk women in spontaneous labor, and the World Health Organization does not recommend it as a standard for healthy pregnant women in spontaneous labor. [19]

For low-risk women, intermittent auscultation remains the standard method of fetal monitoring. NICE recommends auscultation of the fetal heart immediately after contraction for at least 1 minute, at least every 15 minutes, during the established first stage, and at least every 5 minutes during the second stage. This approach helps maintain mobility and reduce unnecessary interventions without compromising outcomes in appropriately selected patients. [20]

Maternal monitoring includes not only pain and behavior, but also temperature, pulse, blood pressure, discharge patterns, urination, and fluid balance. In its updated guidance, NICE specifically emphasizes the importance of fluid management and bladder emptying, especially if intravenous fluids or oxytocin are used. This is necessary for both comfort and safety. [21]

Vaginal examinations remain an important part of progress assessment, but the modern approach makes them a clinically justified procedure rather than a "mandatory ritual." NICE emphasizes that each examination must be truly necessary, with a prior explanation of the reason, and respecting the woman's consent, dignity, and comfort. The World Health Organization recommends a routine interval of approximately 4 hours during the active phase for low-risk women, but in practice, the frequency varies by clinic. [22]

It is crucial that monitoring is not only about collecting data but also about regularly reassessing the pregnancy. If a woman develops risk factors or the fetus shows signs of distress, the physiological management model should quickly give way to more intensive observation. NICE explicitly supports such dynamic risk reassessment. [23]

Table 4. What is usually monitored during physiological childbirth

Parameter	What principle is considered modern?
Fetal heartbeat in the first stage	Intermittent auscultation for low risk
Fetal heartbeat in the second stage	Control more often than in the first period
Blood pressure, pulse, temperature	Regularly according to the clinical situation
Vaginal examinations	Only when they are really needed and influence the decision
Urination	Encourage regular bladder emptying
Water balance	Monitor your drinking, infusions and urine output.

Table source: NICE and World Health Organization. [24]

Pain relief and support during childbirth

The modern model of pain relief in childbirth is based not on the idea of "holding it out until the end," but on respect for the woman's needs. The World Health Organization explicitly states that pain relief should be offered based on the woman's preferences, and NICE emphasizes that healthcare professionals should support her choice and remember that attitudes toward pain in childbirth vary from person to person. [25]

Non-pharmacological methods remain an important part of care. Support, showering, water, massage, breathing techniques, music, warmth, and positional changes can significantly improve the tolerability of contractions. NICE recommends offering the opportunity to be in water during labor to relieve pain, and the World Health Organization supports relaxation, breathing, music, and manual techniques as acceptable and helpful measures. [26]

Epidural analgesia remains the most effective medicinal method of pain relief. The World Health Organization recommends it as an option for healthy pregnant women who request pain relief, and NICE, in its guidance on pain in labor, discusses its use in detail as a standard, effective method. Importantly, the desire for epidural analgesia alone is not considered a sign of an "abnormal" labor. [27]

Opioids and inhaled methods are also used, but with a more modest pain-relieving effect and known limitations. NICE explicitly warns that petimidine, diamorphine, and other opioids provide limited pain relief and can cause drowsiness, nausea, and vomiting in the mother, and short-term respiratory depression and drowsiness in the child. Therefore, they remain an option, but not an "ideal" solution for everyone. [28]

The modern approach to pain relief is always linked to the organization of labor. If remifentanil is used under patient-controlled conditions, NICE only permits it in a maternity hospital with continuous observation by a trained midwife, respiratory monitoring, and readiness for rapid intervention. This is a good example of how effective pain relief cannot be separated from safety considerations. [29]

Table 5. Basic methods of pain relief during physiological childbirth

Method	Strengths	Restrictions
Support, breathing, massage, music, warmth	Without medication, can be combined with each other	The effect is individual
Water in childbirth	Improves relaxation and pain tolerance	Conditions and protocols must be met
Inhalation analgesia	Quickly accessible, controlled by a woman	May cause dizziness and nausea
Opioids	Possible where a medicinal option without epidural analgesia is needed	Limited effect, side effects in mother and child
Epidural analgesia	The most effective method of pain relief	Anesthetic care and monitoring are required.
Remifentanil with patient control	An option in the absence or undesirability of epidural analgesia	Only in an obstetric hospital and under strict supervision

Table source: NICE and World Health Organization. [30]

Second stage of labor

The second stage begins with full dilation of the cervix and ends with the birth of the baby. NICE distinguishes between passive and active parts of the second stage, and the World Health Organization notes that its duration varies: in first births, birth is usually completed within 3 hours, in subsequent births, within 2 hours, but the clinical picture is always more important than a single figure. [31]

Current guidelines support flexible positions during the second stage of pregnancy. NICE recommends avoiding flat supine positions, whether with or without epidural analgesia, and for women without epidural analgesia, notes the benefits of upright positions and mobility. The World Health Organization also recommends choosing a position based on the woman's comfort, including upright positions. [32]

A very important shift in recent years is the support of spontaneous pushing. The World Health Organization recommends supporting the natural urge to push, and NICE points out that in women without epidural analgesia, spontaneous pushing may shorten the second stage compared to directed pushing. This means that the team should not automatically encourage the woman to push "on the count" if the situation remains favorable. [33]

To protect the perineum, current guidelines recommend methods that reduce trauma: warm compresses, perineal massage, gentle manual support of the head of the fetus, and avoiding routine episiotomy. The World Health Organization explicitly discourages the routine or widespread use of episiotomy for spontaneous vaginal birth. This is one of the most consistent findings of the modern obstetric evidence base. [34]

In the second stage, it's especially important not to confuse "wait a little longer" with "missing the moment." If progress stops, signs of fetal distress arise, the mother becomes severely exhausted, or rotation and advancement of the head fails, management ceases to be physiological and requires a reconsideration of tactics. This is why NICE recommends continuing risk assessment in the second stage and monitoring progress based on the woman's behavior, the effectiveness of pushing, and the well-being of the baby. [35]

Table 6. Second period: what supports the physiological course

Approach	Modern assessment
Choosing a comfortable position, including vertical	Recommended
Avoid lying strictly on your back unless necessary.	Recommended
Support of spontaneous pushing	Recommended
Warm compresses and gentle perineal protection	Recommended
Routine episiotomy	Not recommended
Manual pressure on the fundus of the uterus	Not recommended

Table source: NICE and World Health Organization. [36]

The third period and the first minutes after birth

The third period is the time from the birth of the baby to the delivery of the placenta. In modern guidelines, this is no longer considered the "technical end" of labor. It is here that a significant portion of the risk of postpartum hemorrhage develops, and therefore even normal labor requires active but sensible attention at this time. [37]

The World Health Organization recommends prophylactic uterotonics for all births to prevent postpartum hemorrhage, and considers oxytocin 10 international units intramuscularly or intravenously the drug of choice. NICE, in its updated guidelines, also supports active management of the third stage as a way to reduce the risk of postpartum hemorrhage and blood transfusion, although it also allows for physiological management in selected women with informed choice. [38]

The current standard for cord clamping is delayed clamping. The World Health Organization recommends clamping the umbilical cord no sooner than 1 minute after birth. NICE clarifies that clamping should not be done before 1 minute unless there are cord integrity issues or the baby has persistent bradycardia. In active management, clamping is typically performed within 5 minutes if controlled cord traction is required. [39]

After birth, current guidelines emphasize the importance of early skin-to-skin contact. The World Health Organization recommends maintaining skin-to-skin contact with the mother for the first hour of an uncomplicated newborn to prevent hypothermia and support breastfeeding. NICE also recommends encouraging such contact as early as possible after birth. [40]

During this stage, monitoring of the mother also continues. The World Health Organization recommends regularly assessing vaginal bleeding, uterine contractions, fundal height, temperature, pulse, blood pressure, and urination during the first 24 hours. This is an important reminder that "physiological labor" does not end at the moment of birth, but rather continues into early postpartum monitoring. [41]

Table 7. Third period and first minutes after birth

Step	What is considered a modern standard?
Prevention of bleeding	Uterotonic for the prevention of postpartum hemorrhage
Drug of choice	Oxytocin
Clamping the umbilical cord	Not earlier than 1 minute after birth if the baby is stable
Mother and child contact	Early skin-to-skin contact
Starting breastfeeding	As soon as possible after birth if the condition is stable
Control over the mother	Bleeding, uterine tone, temperature, pulse, pressure, urination

Table source: World Health Organization and NICE. [42]

When physiological birth ceases to be physiological

Modern tactics are particularly valuable because they don't romanticize physiology or attempt to "stretch out a natural outcome at any cost." NICE emphasizes that a transition to a more intensive approach is necessary in the event of bleeding, signs of fetal distress, confirmed delayed progress, abnormal cardiotocography, a prolonged third stage, and other complications. Physiological labor is not about avoiding interventions, but about avoiding unnecessary interventions. [43]

In the first stage, one of the warning signs is a confirmed delay in progress. NICE recommends taking into account less than 2 centimeters of dilation over 4 hours, lack of adequate head advancement, weak contractions, and the overall clinical picture. If there is still no progress after amniotomy 2 hours later, a review of management and transfer to the obstetrics unit is required. [44]

In the second stage, concerns include a lack of head advancement, deteriorating fetal heart rate, increasing maternal exhaustion, and the need for more frequent assessments or ineffective position changes. NICE emphasizes that in the second stage, it's important not to simply wait, but to continually assess the effectiveness of pushing, the woman's behavior, and the baby's condition. [45]

In the third stage, bleeding and retained placenta are critical. NICE recommends considering the third stage prolonged if it is not completed within 30 minutes with active management or 60 minutes with physiological management, and advises switching to active management if bleeding begins or the placenta is not delivered within 1 hour. [46]

Finally, any physiological plan automatically ceases to operate if the risk profile changes. This is why modern labor management is based not on a static label of "normal," but on constant reassessment. This is the main difference between modern evidence-based obstetric care and older models, where physiologicality was sometimes taken too literally. [47]

Table 8. Signs that tactics need to be revised

Situation	What does it mean
Delayed progress in the first period	Reassessment, discussion of interventions and possible transfer are needed.
Pathological signs in the fetus	More intensive monitoring and revision of the birth plan is needed
Bleeding	The physiological scenario ceases
No placenta delivery within the permissible timeframe	An active tactic is needed
Severe maternal exhaustion or lack of progress in the second stage	An obstetric reassessment is needed.
Emergence of new risk factors	A transition to a higher level of assistance is needed

Table source: NICE and StatPearls. [48]

Frequently asked questions

What is now considered the beginning of the active phase of labor?

There is no single figure for all guidelines, but all modern documents have moved away from the old 4-centimeter model. The World Health Organization describes the latent phase as up to 5 centimeters, and the American College of Obstetricians and Gynecologists recommends not applying the criteria for active phase and cessation of labor until at least 6 centimeters of dilation. [49]

Should all women lie on their backs during labor?

No. Both the World Health Organization and NICE support freedom of movement and the choice of comfortable positions. In the second stage, the supine position is especially discouraged unless necessary, as it can impair hemodynamics and reduce comfort. [50]

Is it possible to eat and drink during physiological labor?

At low risk, yes, based on how you feel. The World Health Organization recommends oral intake of food and fluids at low risk, while NICE reminds that excessive water intake and unnecessary infusions should be avoided due to the risk of hyponatremia. [51]

Is it necessary to rupture the amniotic sac to speed up labor?

No. Both the World Health Organization and NICE do not recommend routine amniotomy if labor is progressing without complications. It is considered only in the case of clinically confirmed delay and after discussion with the woman. [52]

What's better for pain relief: water, opioids, or epidural analgesia?

It depends on the woman's priorities and the clinical situation. Water, showers, massage, and breathing techniques help many, but epidural analgesia remains the most effective method of pain relief. Opioids are possible, but have limited effectiveness and are more likely to cause side effects. [53]

Should everyone have continuous cardiotocography?

No. For low-risk cases, current guidelines prefer intermittent auscultation. Continuous cardiotocography is used when indicated, such as for risk factors, labor induction, or signs of fetal distress. [54]

Is an episiotomy necessary during the first birth "to prevent rupture"?

Routinely - no. The World Health Organization does not recommend the routine or widespread use of episiotomy for spontaneous vaginal birth. The decision to do so should be individualized, not a default prophylactic measure. [55]

When is the umbilical cord clamped during physiological birth?

The current standard is no earlier than 1 minute after birth, if the baby is stable and there are no urgent reasons for earlier clamping. NICE clarifies that with active management of the third stage, this usually occurs within 5 minutes if controlled cord traction is required. [56]

Why do they continue to watch the mother so closely after birth?

Because the risk of postpartum hemorrhage and other early complications remains in the first few hours, the World Health Organization recommends regularly assessing bleeding, uterine contractions, temperature, pulse, blood pressure, and urination during the first 24 hours. [57]

When can we say that physiological birth did not go according to the physiological scenario?

When bleeding, confirmed delay in progress, signs of fetal distress, abnormal cardiotocography, failure to deliver the placenta within the prescribed timeframe, or other complications occur, modern tactics rely on recognizing this moment early. [58]