The mildest and most common form of brachial plexus injury, occurring when nerve fibers are stretched or shocked but remain intact. Most children experience full recovery of movement and muscle strength within three to six months through non-surgical physical therapy.

Understanding Erb’s Palsy and Brachial Plexus Birth Injuries
If your newborn was diagnosed with Erb’s palsy, learning about the condition can help you make informed decisions for their care and future. Our dedicated legal team is here to help your family understand your rights and evaluate whether medical negligence played a role.
What is Erb’s palsy?
Erb’s palsy, also known as brachial plexus palsy, is a birth injury that occurs when the network of nerves surrounding an infant’s neck and shoulder is stretched, compressed, or torn during delivery. This network, called the brachial plexus, controls signals from the spinal cord to the shoulder, arm, elbow, wrist, and hand.
When these delicate nerves are damaged, the affected infant may experience weakness, limited motion, or total loss of movement in the arm. Depending on the severity of the nerve damage, some babies recover fully within a few months, while others suffer permanent paralysis or long-term disability requiring specialized medical intervention and therapy. [Internal Link: Birth Injury]
What causes Erb’s palsy and brachial plexus injuries?
Brachial plexus nerve damage usually occurs during a difficult labor or delivery when the infant’s neck is stretched to one side while the shoulders pass through the birth canal. Key factors and causes that contribute to this injury include:
- Excessive side-to-side force or lateral traction applied to the baby’s head and neck by the delivery team
- Unmanaged shoulder dystocia, an emergency situation where the baby’s shoulder becomes trapped behind the mother’s pelvic bone during delivery [Internal Link: Shoulder Dystocia]
- High birth weight (fetal macrosomia), which increases the physical strain during passage through the birth canal
- Prolonged or obstructed labor that leads to emergency delivery maneuvers
- Improper use of delivery assistance tools, such as vacuum extractors or forceps, during delivery
- Abnormal fetal positioning prior to birth, including breech presentation
When Erb’s palsy may be medical malpractice
It is important for parents to know that not every case of Erb’s palsy is caused by medical malpractice. Minor nerve stretch injuries can occasionally happen during difficult deliveries despite proper medical care. However, many brachial plexus injuries occur when medical professionals fail to follow established obstetric guidelines or exercise appropriate care during labor.
Scenarios that may point to medical negligence include:
- Applying excessive or unreasonable lateral traction on the baby’s head and neck during delivery
- Failing to recognize known prenatal risk factors for shoulder dystocia, such as gestational diabetes or fetal macrosomia
- Mismanaging shoulder dystocia by using excessive physical force instead of standard, gentle obstetric maneuvers
- Misusing delivery equipment, such as applying excessive force with vacuum extractors or obstetrical forceps
- Failing to recommend or perform a timely C-section when labor complications arise
At Wais, Vogelstein, Forman, Koch & Norman, LLC, our birth injury attorneys collaborate closely with leading medical experts to review delivery records, analyze obstetric decisions, and help families determine whether medical negligence caused their child’s Erb’s palsy.
Treatment and long-term outlook
The long-term outlook for a child with Erb’s palsy depends heavily on the type and severity of the nerve damage. Mild stretch injuries often resolve within three to six months with consistent daily physical therapy and gentle range-of-motion exercises to prevent muscle stiffness.
For more severe nerve damage involving tears or complete detachment, surgical interventions such as nerve grafts, nerve transfers, or muscle releases may be necessary. Early diagnosis and physical therapy are crucial for maximizing recovery and helping your child achieve full mobility.
Injury Types: Erb’s Palsy & Brachial Plexus
Recognizing the severity levels of brachial plexus injuries.
Understanding the specific type and severity of a brachial plexus injury helps families anticipate their child’s treatment path and long-term care needs.
Neurapraxia (Praxic Injury)
Rupture
A severe injury where the nerve fiber itself is torn apart outside the spinal cord attachment point. Because a ruptured nerve cannot heal on its own, pediatric surgical intervention, such as a nerve graft or splice, is typically required to restore arm movement.
Neuroma
A condition where a stretched nerve fiber heals but forms scar tissue around the damaged area. This scar tissue puts pressure on healthy nerve pathways, which can cause ongoing weakness or pain and may require physical therapy or specialized surgical release.
Avulsion
The most severe type of brachial plexus injury, occurring when the nerve root is completely torn away from the spinal cord. Avulsion injuries require specialized reconstructive surgery and long-term rehabilitation, and they may result in permanent muscle weakness or partial paralysis.
Frequently Asked Questions
Common questions about Erb’s palsy.
Here are answers to some of the most common questions families ask after an Erb’s palsy diagnosis.
What is the difference between Erb’s palsy and shoulder dystocia?
Shoulder dystocia is an emergency obstetric complication that occurs during delivery when a baby’s shoulder becomes lodged behind the mother’s pelvic bone. Erb’s palsy is the resulting medical condition, which occurs when the brachial plexus nerves are stretched or torn during attempts to free the trapped shoulder. Shoulder Dystocia
Is Erb’s palsy always caused by medical malpractice?
No. While many brachial plexus injuries result from excessive lateral traction or improper delivery techniques, some minor nerve stretches can occur during complicated births without medical negligence. A comprehensive review of medical records by birth injury attorneys and medical experts is required to determine whether proper standards of care were followed.
Can a child fully recover from an Erb’s palsy injury?
Many infants with mild stretch injuries (neurapraxia) recover full arm function within a few months through daily physical therapy and range-of-motion exercises. However, children with severe nerve tears or avulsion injuries may face long-term challenges, requiring nerve graft surgeries, occupational therapy, and ongoing medical care.
How long do families have to file an Erb’s palsy legal claim?
The timeframe for filing a birth injury lawsuit, known as the statute of limitations, varies significantly depending on state law and specific circumstances. Because these legal deadlines can be complex and time-sensitive, consulting an experienced birth injury attorney promptly ensures your family’s legal rights remain protected.
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