- April 30, 2026
Erb’s palsy is a birth injury that occurs when the brachial plexus nerves in a newborn’s neck and shoulder are damaged during delivery, affecting movement and strength in one arm:- The injury typically involves stretched, torn, or compressed nerves that control shoulder and arm function.
- It often develops when a baby’s shoulder becomes stuck during birth and excessive force or improper maneuvers are used.
- In many cases, better management of shoulder dystocia and delivery risks could have reduced or prevented the nerve damage.
What Is Erb’s Palsy and How Does It Happen During Delivery?
Erb’s palsy birth injury describes damage to the upper part of the brachial plexus, the bundle of nerves that controls movement and sensation in a baby’s shoulder, arm, and hand.
For many families, the central questions are what caused that damage in the delivery room and whether it was truly unavoidable or linked to medical negligence.
Parents are often told that Erb’s palsy was “just one of those things” that can happen in a difficult birth, but that explanation doesn’t always match the medical realities.
During a free consultation, Michigan Erb’s palsy birth injury lawyers can explain how the medical facts of the delivery and the legal standards for negligence may apply to a child’s diagnosis.
Key Takeaways About What Is Erb’s Palsy Birth Injury
- An Erb’s palsy birth injury involves damage to the brachial plexus nerves that affects movement and strength in a newborn’s shoulder and arm.
- The injury often occurs when a baby’s shoulder becomes stuck against the mother’s pelvic bone and excessive force is used to complete the delivery.
- Risk increases when shoulder dystocia, large baby size, or maternal diabetes are present and not managed with proper techniques or a timely C‑section.
- Some Erb’s palsy cases are preventable and may be linked to doctor or delivery team negligence, while others occur despite appropriate care.
What Is An Erb’s Palsy Birth Injury?
Erb’s palsy birth injury refers to nerve damage in a newborn’s brachial plexus that affects the upper portion of the nerve network. The injury typically leads to weakness, limited movement, or an unusual position in one arm shortly after birth.
In simple terms, Erb’s palsy affects how signals travel from the neck to the shoulder and arm:
- The brachial plexus nerves near the neck and shoulder are stretched, compressed, or torn.
- The affected arm may appear limp, rotated inward, or unable to move normally.
- Reflexes and muscle control in the shoulder and upper arm can be noticeably reduced.
Doctors may use terms like “brachial plexus palsy” or “upper brachial plexus injury” to describe the same condition. The key point for families is that this is a nerve injury related to the birth process, not simply a random weakness in the arm.
How the Brachial Plexus Works in a Newborn
The brachial plexus is a network of nerves that runs from the spinal cord in the neck through the shoulder region and into the arm and hand. In newborns, those nerves are still delicate and more vulnerable to stretching or compression.
When the brachial plexus works properly, it:
- Carries motor signals from the spine to the shoulder, arm, and hand muscles.
- Sends sensory information, such as touch and position, from the arm back to the brain.
- Coordinates movement so the arm can bend, rotate, and grasp.
When those nerves are injured during birth, the signals they carry can be disrupted. That disruption is what leads to the characteristic weakness or paralysis seen in Erb’s palsy.
How Does Erb’s Palsy Happen During Delivery?
Erb’s palsy often happens when the baby’s head is delivered, but one shoulder remains stuck against the mother’s pelvic bone, creating a complication known as shoulder dystocia. In that stressful moment, the actions of the delivery team can make the difference between a safe delivery and a preventable nerve injury.
The general pattern that leads to an Erb’s palsy birth injury tends to look like this:
- The baby’s size, position, or maternal anatomy makes the shoulder difficult to deliver.
- The shoulder becomes lodged behind the pubic bone after the head is born.
- Instead of using proper shoulder dystocia maneuvers or moving to C‑section early enough, someone applies too much traction or uses improper techniques.
Not every case of shoulder dystocia causes Erb’s palsy, and not every brachial plexus injury comes from obvious force. That is why a detailed review of the delivery is so important.
What Is Shoulder Dystocia and Why Does It Matter?
Shoulder dystocia occurs when the baby’s shoulder becomes trapped behind the mother’s pelvic bone after the head has already been delivered. This is recognized as an obstetric emergency because the baby must still be delivered quickly and safely.
This type of injury matters in Erb’s palsy cases because it is often the moment when the brachial plexus nerves are injured. When this complication arises, well‑trained delivery teams are expected to:
- Recognize shoulder dystocia quickly and clearly.
- Call for additional help and use specific repositioning maneuvers.
- Avoid pulling on the baby’s head or neck to force delivery.
If those steps are skipped, delayed, or replaced by forceful traction, the risk of Erb’s palsy and other injuries rises sharply.
What Delivery Room Actions Can Cause Brachial Plexus Injury?
Several specific delivery room actions can increase the chance of brachial plexus injury in a newborn. These actions are often the focus of both medical review and later legal analysis.
Common sources of excessive stress on the brachial plexus include:
- Pulling or twisting the baby’s head or neck to free a stuck shoulder.
- Applying strong downward pressure on the head while the shoulder remains lodged.
- Using forceps or a vacuum extractor improperly or with too much force.
- Continuing aggressive vaginal delivery attempts instead of moving to C‑section when appropriate.
When one or more of these actions appear in records or provider accounts, a careful review may ask whether they were truly necessary or whether safer options were available.
How Does “Excessive Traction” Lead to Erb’s Palsy?
“Excessive traction” refers to pulling harder than medically appropriate on the baby’s head, neck, or shoulders during a difficult delivery. Because the brachial plexus runs through the neck and shoulder, that kind of pulling can stretch or tear the nerves.
In many Erb’s palsy cases, traction becomes a concern when:
- Providers pull downward on the head to deliver the shoulders.
- The shoulder remains stuck, but force continues to be applied.
- Proper repositioning maneuvers are not fully attempted or are only partially used.
The distinction between necessary guidance and excessive traction often hinges on training, technique, and timing. This is one of the reasons legal teams frequently work with obstetric experts in Erb’s palsy birth injury cases.
Risk Factors Linked to Erb’s Palsy in Newborns
Some deliveries pose a higher risk of brachial plexus injury, especially when multiple risk factors are present. Recognizing those risks before and during labor can help providers choose safer approaches.
Common risk factors seen in Erb’s palsy cases include:
- Fetal macrosomia (larger‑than‑average baby size).
- Maternal diabetes, which can be associated with larger babies.
- Prior history of shoulder dystocia in an earlier delivery.
- Prolonged second stage of labor or difficult vaginal delivery.
The presence of risk factors does not automatically mean malpractice occurred, but it does raise questions about whether the delivery plan adequately accounted for those known challenges.
Is Erb’s Palsy Always Unavoidable?
Erb’s palsy is not always unavoidable. Some injuries occur even when the delivery team follows accepted standards and uses appropriate maneuvers. However, many permanent brachial plexus injuries have been linked to preventable mistakes in managing shoulder dystocia and related complications.
Understanding the difference between a true complication and possible medical negligence often involves evaluating:
- Whether risk factors were recognized and documented.
- Whether a C‑section should have been considered or offered earlier.
- Whether recommended maneuvers were used in the right order and without excessive force.
For families, this is usually the point at which medical and legal questions blend together. A Michigan birth injury lawyer can help coordinate a medical review to see which side of the line a particular case falls on.
Erb’s Palsy Caused by Doctor Negligence: What That Can Look Like
Erb’s palsy caused by doctor negligence usually involves a combination of risk awareness, decision‑making, and delivery techniques that do not meet accepted standards of care in Michigan. The problem is rarely a single motion or moment in isolation.
Patterns that may suggest negligence in an Erb’s palsy birth injury case include:
- Failing to recognize or document risk factors for shoulder dystocia.
- Proceeding with vaginal delivery despite clear warning signs that a C‑section may be safer.
- Delayed or disorganized response when shoulder dystocia occurs.
- Forceful traction on the head or neck instead of proper maneuvers.
- Inconsistent or incomplete charting about what happened in the delivery room.
These patterns do not conclusively establish negligence, but they are strong reasons to pursue an independent review.
Distinguishing Unavoidable Complications From Possible Malpractice
Families often feel stuck between medical explanations and their own sense that something was wrong. Distinguishing between unavoidable complications and possible malpractice begins with a careful look at both the pregnancy and the delivery.
Important questions for that review usually include:
- Were risk factors like baby size and maternal health documented and considered?
- Was the delivery plan adjusted when problems appeared during labor?
- Did the team use standard shoulder dystocia maneuvers before pulling on the baby’s head?
- Were alternative options, such as C‑section, reasonably considered and documented?
Answers to questions like these help clarify whether Erb’s palsy may be a tragic but unavoidable outcome or a preventable injury linked to medical decisions and actions.
How Does a Lawyer Help Families Explore an Erb’s Palsy Claim?
Exploring an Erb’s palsy claim involves both medical analysis and legal evaluation, which can feel daunting for families already focused on a child’s care. A birth injury lawyer’s role is to handle the investigation and help parents understand what happened and what options exist.
Typical steps in that legal‑medical review include:
- Collecting prenatal, labor, delivery, and newborn records.
- Working with independent obstetric and pediatric experts.
- Comparing the delivery to recognized standards for shoulder dystocia management.
- Analyzing whether doctor or hospital decisions likely caused or worsened the brachial plexus injury.
This process does not change the diagnosis, but it can bring clarity about responsibility and potential compensation for long‑term needs.
What Is Erb’s Palsy Birth Injury: Questions Answered by Our Michigan Attorneys
What causes Erb’s palsy in a newborn, and is it preventable?
Erb’s palsy in a newborn is caused by damage to the brachial plexus nerves, often when a shoulder becomes stuck during delivery and too much force is used to complete the birth. Some cases occur despite careful management, but many permanent injuries are linked to preventable errors in handling shoulder dystocia or deciding when to move to a C‑section.
How does Erb’s palsy happen during delivery if no one mentioned shoulder dystocia?
Erb’s palsy can still happen during delivery even if shoulder dystocia was not clearly labeled or discussed with the parents. Sometimes records show a tight fit or difficult delivery without using the term, and nerve injury may still result from traction or other maneuvers used to complete the birth.
Can Erb’s palsy be caused by forceps or vacuum use?
Forceps or vacuum devices can contribute to Erb’s palsy if they are applied or used in a way that puts extra strain on the baby’s neck and shoulders. When these tools are used improperly or with excessive force, the risk of brachial plexus injury increases, and that may become a focus in a legal review.
Does Erb’s palsy always mean someone was negligent?
Erb’s palsy does not always indicate negligence, because nerve injuries can occur even when a delivery team follows accepted standards. That said, a significant number of cases have been linked to preventable mistakes, which is why an independent review of the delivery is so important when a child receives this diagnosis.
How can a lawyer help if a child has Erb’s palsy from birth?
A lawyer can help by investigating how the delivery was handled, working with medical experts to evaluate care, and advising families on whether they may have a birth injury claim. If negligence appears likely, legal counsel can also pursue compensation to help cover therapy, treatment, and other long‑term needs.
When Questions About Erb’s Palsy Turn Into a Potential Case For Medical Negligence
Questions about what Erb’s palsy is and how it happens during delivery often start with shock and confusion after a newborn’s diagnosis. Over time, those questions can become central to understanding whether the injury was a tragic complication or something that better care might have avoided.
Legal teams familiar with brachial plexus birth injuries can help families sort through records, medical explanations, and legal standards to see where a particular case stands. That explanation does not erase the injury, but it can help parents make informed decisions about both accountability and support for their child.
When doubt remains about how a child’s Erb’s palsy birth injury occurred, a calm, informed conversation with a lawyer can turn scattered concerns into a clearer plan.
To learn more about how Michigan law may apply to an Erb’s palsy diagnosis, contact Goodman Acker at 248‑286‑8100 or send a message online to arrange a free, confidential consultation.