Shoulder Dystocia
Overview
Definition
Shoulder dystocia is a problem during birth. The baby’s head has been born but the shoulders are stuck. The shoulder becomes trapped against the mother’s pubic bone.
Most babies will be able to be born safely with some help. Sometimes the baby may be stuck in the birth canal too long, which can cause some problems.
Problems for the baby may include:
- Lack of oxygen
- Broken arm or collarbone
- Arm nerve damage
- Paralysis
Problems for the mother may include:
- Tearing or bruising of the cervix, rectum, or vagina
- Bruising to the bladder
- Severe bleeding
Shoulder Dystocia |
![]() |
The baby's shoulder is lodged behind the mother's pubic bone. |
Copyright © Nucleus Medical Media, Inc. |
SymptomsandDiagnosis
Diagnosis
The doctor or midwife will know when the birth process stops after the head is born.
Prenatal tests will estimate the size of the fetus and the mother’s pelvis. These tests may show a risk for shoulder dystocia.
An ultrasound may be done before labor. The doctor will be able to see if the baby is too large to fit safely through the birth canal. A vaginal delivery may not be a safe method if the baby is too large.
Treatments
Treatment
The care team will act fast if a shoulder dystocia occurs. The goal is to release the baby as fast as possible. This will allow the vaginal birth to continue. The doctor or midwife may:
- Reposition the mother
- Reposition the baby to try to move the shoulder away from the bone
A C-section may be needed if the baby remains stuck in the birth canal.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
Edits to original content made by Denver Health.
Copyright © EBSCO Information Services
All rights reserved.
a (Stuck Shoulder Delivery)
RESOURCES
American Congress of Obstetricians and Gynecologists http://www.acog.org
American Pregnancy Association http://www.americanpregnancy.org
CANADIAN RESOURCES
The Society of Obstetricians and Gynaecologists of Canada http://www.sogc.org
Women's Health Matters http://www.womenshealthmatters.ca
References
American College of Obstetricians and Gynecologists (College), Society for Maternal-Fetal Medicine, Caughey AB, Cahill AG, Guise JM, Rouse DJ. Safe prevention of the primary cesarean delivery. Am J Obstet Gynecol. 2014 Mar;210(3):179-93. Reaffirmed 2016.
Cesarean section. EBSCO DynaMed website. Available at: https://www.dynamed.com/procedure/cesarean-section . Updated March 5, 2020. Accessed March 19, 2020.
National Institute for Health and Clinical Excellence (NICE). Caesarean section. NICE 2011 Nov:CG132PDF, summary can be found in BMJ 2011 Nov 23;343:d7108.
World Health Organization. Managing complications in pregnancy and childbirth: a guide for midwives and doctors. World Health Organization website. Available at: http://whqlibdoc.who.int/publications/2007/9241545879%5Feng.pdf. Updated 2007. Accessed March 19, 2020.