Obstructed Labour
Overview
Obstructed labour occurs when the baby cannot pass through the birth canal despite strong contractions, due to a mismatch between the baby’s size or position and the mother’s pelvis, or another physical barrier. It is a serious obstetric emergency requiring prompt intervention.
Symptoms of Obstructed Labour
- Labour that fails to progress despite strong, frequent contractions over a prolonged period
- Marked swelling of the mother's vulva and increasing maternal exhaustion
- Signs of fetal distress, such as an abnormal fetal heart rate
- In advanced, untreated cases, signs of uterine rupture — sudden severe abdominal pain, cessation of contractions, and maternal shock — represent a life-threatening emergency
What Causes Obstructed Labour?
- Most commonly results from a mismatch between the size of the baby's head and the mother's pelvis (cephalopelvic disproportion).
- Can also result from an abnormal position of the baby (such as a transverse lie), or, less commonly, a physical obstruction in the birth canal.
- Risk is increased by a small or abnormally shaped maternal pelvis, a large baby, and lack of access to skilled monitoring during labour.
How is Obstructed Labour Diagnosed?
- Diagnosed by careful monitoring of labour progress, typically using a structured tool (a partograph) to track cervical dilation, contractions, and the descent of the baby's head over time, allowing early identification of labour that is not progressing as expected.
- Assessment of the baby's heart rate throughout labour helps detect fetal distress.
- Examination assesses the position of the baby and the adequacy of the maternal pelvis relative to the baby's size.
Treatment for Obstructed Labour
Obstructed labour is an obstetric emergency requiring urgent referral to a facility capable of emergency delivery, most often by caesarean section.
Early recognition through careful labour monitoring is critical, as prolonged obstructed labour significantly increases risk to both mother and baby, including the risk of uterine rupture, fistula formation, and stillbirth.
Supportive care, including intravenous fluids and close monitoring, is provided while arranging urgent delivery.
After delivery, the mother is monitored closely for complications such as bleeding, infection, and, in cases of prolonged obstruction, tissue damage that can lead to later complications such as obstetric fistula.
How to Prevent Obstructed Labour
- Ensure skilled birth attendance for every delivery, using tools such as the partograph to monitor labour progress and identify problems early.
- Attend antenatal care, which can help identify risk factors such as an abnormal baby position or concerns about pelvic size before labour begins.
- Ensure timely referral to a facility capable of emergency caesarean delivery when labour is not progressing normally.
- Support community awareness of the danger signs of prolonged labour to encourage timely care-seeking.
1 Source
Mfamasia's health articles are based on evidence-backed information and review by medical professionals to ensure accuracy, reliability and up-to-date health standards.
- Tanzania Standard Treatment Guidelines (STG) and National Essential Medicines List (NEMLIT), Ministry of Health, Community Development, Gender, Elderly and Children, United Republic of Tanzania, 2021 Edition.