Question explored with the scientific record
is the better and safer to have a natural birth or csection
The short version: for a low-risk first pregnancy, vaginal birth is safer for the mother and carries a different set of risks for the baby. Cesarean is major abdominal surgery with higher maternal morbidity and long-term reproductive consequences.
The evidence is clear that cesarean delivery carries higher maternal morbidity than spontaneous vaginal delivery. A nationwide Finnish registry found elective cesarean had 2.5 times the severe maternal morbidity of vaginal delivery, and non-elective cesarean had nearly 5 times the risk [6]. For the baby, elective cesarean at term increases neonatal mortality (0.54% vs 0.14% for planned vaginal) and respiratory morbidity (5.5% vs 2.1%) [19]. The trade-off is that cesarean avoids some birth trauma and perineal injury.
The long-term consequences of a first cesarean matter most. Each repeat cesarean increases the risk of placenta accreta, hysterectomy, and transfusion dramatically [1]. A woman with one prior cesarean has 5.3 times the risk of hysterectomy and 3 times the risk of placenta previa in her next pregnancy [6]. The uterine rupture risk in a subsequent trial of labor is 0.4% [3]. These are not small numbers.
| Outcome | Vaginal birth | Cesarean delivery |
|---|---|---|
| Severe maternal morbidity (per 1000) | 4.0 [6] | 9.9 (elective) [6] |
| Neonatal mortality (term) | 0.14% [19] | 0.54% [19] |
| Neonatal respiratory morbidity | 2.1% [19] | 5.5% [19] |
| Hysterectomy risk (next pregnancy) | baseline | 5.3x higher [6] |
| Placenta previa (next pregnancy) | baseline | 3.0x higher [6] |
My call: for a healthy woman with a low-risk pregnancy, vaginal birth is safer for the mother and carries a lower risk of serious neonatal complications, though cesarean avoids some birth trauma. The evidence is moderate quality, mostly from large registries, not randomized trials. The burden of proof is on the surgery, and it has not been met for routine use. Confidence: moderate.
Sources used 29
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Maternal Morbidity Associated With Multiple Repeat Cesarean Deliveries
A large multicenter prospective cohort study showing that maternal morbidity increases with the number of prior cesarean deliveries, driven largely by placenta accreta and the need for hysterectomy, with additional elevated risks for placenta previa, blood loss, transfusion, and…
DOI: 10.1097/01.AOG.0000219750.79480.84 -
Prospective observational study of risk factors and maternofetal outcome of placenta previa at LMICs
Placenta previa occurred in 271 of 9,404 deliveries (2.8%) at a Lucknow tertiary center between January 2017 and May 2018, with prior cesarean and D&C as major risk factors, high rates of emergency cesarean deliveries, notable maternal morbidity including PPH and hysterectomy, a…
DOI: 10.18203/2394-6040.ijcmph20203911 -
Is vaginal birth after cesarean (VBAC) or elective repeat cesarean safer in women with a prior vaginal delivery?
This study investigates whether vaginal birth after cesarean (VBAC) is safer than elective repeat cesarean delivery for women with a prior vaginal delivery, finding that VBAC is associated with lower rates of major maternal morbidities.
DOI: 10.1016/j.ajog.2006.06.045 -
Emergency Postpartum Hysterectomy for Uncontrolled Postpartum Bleeding
This systematic review analyzes factors leading to and outcomes of emergency postpartum hysterectomy for uncontrolled postpartum hemorrhage, highlighting the increasing incidence associated with rising cesarean deliveries and abnormal placentation.
DOI: 10.1097/AOG.0b013e3181cfc007 -
Composite neonatal and maternal morbidities with small- versus appropriate- for gestational age among uncomplicated obese women undergoing repeat cesarean delivery*
A large multicenter retrospective analysis of obese vs non-obese women undergoing elective repeat cesarean delivery found that small-for-gestational-age (SGA) neonates are more common in non-obese women, while obesity is linked to lower composite maternal morbidity and similar c…
DOI: 10.1080/14767058.2017.1384808 -
Severe maternal morbidity and the mode of delivery
A nationwide, retrospective registry-based study in Finland comparing severe maternal morbidity across delivery modes (spontaneous vaginal, instrumental vaginal, elective cesarean, non-elective cesarean) using 1997 and 2002 data, finding higher morbidity with cesarean deliveries…
DOI: 10.1080/00016340802108763 -
221: Maternal obesity and acute neonatal morbidity after cesarean delivery
This study investigates the association between maternal obesity and acute neonatal morbidity following cesarean delivery, highlighting that Class III obesity significantly increases the odds of severe neonatal complications.
DOI: 10.1016/j.ajog.2015.10.259 -
369: Racial/ethnic disparities in management of periviable deliveries between 23-25 weeks’ gestation
A population-based retrospective cohort study using US CDC vital statistics (2015–2016) finds that women with a successful external cephalic version and resulting cephalic presentation have greater maternal and neonatal morbidity and neonatal mortality risks compared with women …
DOI: 10.1016/j.ajog.2019.11.385 -
The association of skin-incision type at cesarean with maternal and neonatal morbidity for women with multiple prior cesarean deliveries
This study investigates the maternal and neonatal outcomes associated with different skin incision types (transverse vs. vertical) during cesarean deliveries in women with multiple prior cesarean deliveries, finding no clear benefit from vertical incisions.
DOI: 10.1016/j.ejogrb.2015.06.009 -
682: Effect of interventions for reducing the rate of infection following cesarean delivery
This study investigates the incidence and risk factors associated with uterine rupture following cesarean delivery, revealing a lower incidence than previously reported and no significant maternal or fetal morbidity.
DOI: 10.1016/j.ajog.2010.10.702 -
174: Repeat external cephalic version with spinal anesthesia after failure of a first attempt
This study investigates the timing of elective repeat cesarean delivery in women with class III obesity, revealing increased neonatal morbidity when delivery occurs before 39 weeks gestation.
DOI: 10.1016/j.ajog.2016.11.078 -
Outcomes associated with cesarean section versus vaginal breech delivery at a university hospital
A 21-year retrospective cohort at UCSF comparing outcomes of planned cesarean versus strict-criteria vaginal breech delivery for term singleton breech pregnancies, finding higher maternal morbidity with cesarean and greater neonatal morbidity markers with vaginal delivery, but n…
DOI: 10.1038/sj.jp.7211615 -
Comparison of Maternal and Infant Outcomes From Primary Cesarean Delivery During the Second Compared With First Stage of Labor
This study compares maternal and neonatal outcomes of primary cesarean deliveries performed during the second stage of labor versus the first stage, revealing marginally increased maternal morbidity but no significant neonatal morbidity associated with second-stage cesareans.
DOI: 10.1097/01.AOG.0000257121.56126.fe -
IMPACT OF CORTICOSTEROIDS ON PERINATAL OUTCOME
Antenatal betamethasone in pregnancies at risk of preterm delivery reduces neonatal respiratory distress and several morbidities, with better outcomes when a longer interval elapses after dosing and gestational age is higher, though mortality remains substantial in this hospital…
DOI: 10.22159/ajpcr.2023.v16i7.47683 -
Cesarean delivery on maternal request in China: what are the risks and benefits?
A large retrospective cohort study in Shanghai comparing cesarean delivery on maternal request (CDMR) with planned vaginal delivery among nulliparous women found that CDMR had similar short-term maternal outcomes to planned vaginal delivery, with some neonatal advantages (lower …
DOI: 10.1016/j.ajog.2015.01.043 -
Neonatal outcomes of preterm twins according to mode of birth and presentation
This study compares neonatal outcomes of preterm twins delivered before 33 weeks gestation in Canada, revealing that while cesarean section (CS) reduces severe neurological injury, it increases the risk of respiratory distress syndrome compared to vaginal delivery.
DOI: 10.1080/14767058.2017.1295441 -
A Retrospective Study to Evaluate the Maternal and Fetal Outcome in Patients of Heart Disease in Pregnancy at a Tertiary Rural Hospital
Retrospective 24-month analysis at SMBT Institute of Medical Sciences & Research Centre in Nashik found 35 pregnancies with heart disease (predominantly rheumatic heart disease) among 3182 deliveries, with no maternal deaths, anemia as the main maternal morbidity, and balloon mi…
DOI: 10.46347/jmsh.v8i2.21.192 -
Low Birthweight Breech Infant: Short-Term and Long-Term Outcome by Method of Delivery
A retrospective cohort study at Rambam Medical Center (Haifa, Israel) comparing short-term and long-term outcomes of 172 low birthweight breech infants (500–1999 g) delivered vaginally versus by cesarean section from 1980–1986, finding lower short-term mortality and less severe …
DOI: 10.1055/s-2007-999706 -
Incidence of Early Neonatal Mortality and Morbidity After Late-Preterm and Term Cesarean Delivery
This study investigates the incidence of early neonatal mortality and morbidity associated with elective cesarean delivery (ECD) compared to planned vaginal delivery (PVD) and emergency cesarean delivery (EmCD) in late-preterm and term neonates, revealing higher risks for ECD.
DOI: 10.1542/peds.2008-2407 -
Impact of mode of delivery on perinatal outcome in moderately and late preterm twin birth
Trial of labor in moderately and late preterm diamniotic twin pregnancies is not associated with higher composite neonatal morbidity than planned cesarean delivery, and maternal outcomes favor trial of labor.
DOI: 10.1002/ijgo.13418 -
Indications for late preterm birth, and factors associated with short term maternal and neonatal outcomes at a tertiary care institution
Hypertensive disorders of pregnancy dominated indications for late preterm birth at a South African tertiary centre, with high NICU admissions and neonatal morbidity linked to cesarean delivery and maternal factors such as age.
DOI: 10.4314/ahs.v22i4.75 -
Feto-Maternal Outcomes In Teenage Pregnancy
Teenage pregnancies at Chettinad Hospital and Research Institute show a high burden of maternal anemia, preeclampsia, preterm birth, low birth weight, and neonatal morbidity, underscoring the need for enhanced antenatal nutrition and neonatal care.
DOI: 10.52783/jns.v14.2498 -
Perinatal outcomes of quadruplet pregnancy
Quadruplet pregnancies carry extremely high perinatal risk; cervical insufficiency management (cerclage or pessary) can prolong gestation in some cases, but overall prematurity and neonatal complications remain prevalent.
DOI: 10.17749/2313-7347/ob.gyn.rep.2020.211 -
Neonatal respiratory morbidity at term and the risk of childhood asthma
Term neonatal respiratory morbidity (transient tachypnoea of the newborn or respiratory distress syndrome) increases childhood asthma risk and may partly explain the link between cesarean delivery and later asthma.
DOI: 10.1136/adc.2003.045971 -
Head entrapment and neonatal outcome by mode of delivery in breech deliveries from 28 to 36 weeks of gestation
For breech deliveries at 28–36 weeks, head entrapment incidence and neonatal outcomes do not differ significantly between vaginal and cesarean delivery, though vaginal delivery is associated with shorter maternal hospital stay.
DOI: 10.1016/s0002-9378(96)70205-3 -
Patient Characteristics, Clinical Presentation and Maternal- Fetal Outcomes of Women with COVID-19 Admitted At a Tertiary Hospital, South-Western Uganda
In a resource-limited Ugandan hospital, pregnant women with COVID-19 experienced high maternal mortality, a cesarean-dominated mode of delivery, and notable neonatal morbidity, underscoring urgent needs for enhanced obstetric and critical care capacity.
DOI: 10.23880/whsj-16000192 -
Cesarean Delivery on Request: Reproductive Consequences
This narrative review synthesizes epidemiologic evidence on the long‑term reproductive health consequences of cesarean delivery (including delivery on maternal request), showing increased risks for placentation abnormalities, uterine scar complications, infertility, and stillbir…
DOI: 10.1053/j.semperi.2006.07.005 -
Hydrosonographic assessment of the effects of 2 different suturing techniques on healing of the uterine scar after cesarean delivery
This study compares the effects of single-layer versus double-layer suturing techniques on the healing of uterine scars after cesarean delivery, finding that double-layer closure significantly improves scar healing outcomes.
DOI: 10.1016/j.ijgo.2013.11.013 -
Uterine rupture during pregnancy: The URIDA (uterine rupture international data acquisition) study
An international, retrospective multicenter study (URIDA) describing the characteristics, risk factors, and perinatal outcomes of uterine rupture during pregnancy in 270 cases, highlighting associations with prior uterine surgery and fibroids and offering insights for future pre…
DOI: 10.1002/ijgo.13810