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Brachial Plexus Birth Injury: Causes and Legal Help

By Jason Plotkin, Esq., CEO and Managing Attorney, Pinder Plotkin Legal Team — Last reviewed May 26, 2026

As a parent, a brachial plexus birth injury diagnosis for your child is devastating. This injury happens when the network of nerves connecting the spinal cord to the shoulder, arm, and hand is damaged during childbirth. This article provides a comprehensive overview of brachial plexus birth injuries, including causes, symptoms, and treatment options. We’ll also discuss long-term effects and information that will be helpful as you move forward, including how a Baltimore birth injury lawyer can help you advocate for your child’s needs and rights. We encourage you to schedule a free initial consultation.

Table Of Contents:

Understanding Brachial Plexus Birth Injury

A brachial plexus birth injury, sometimes called Erb’s palsy or neonatal brachial plexus palsy, occurs when these nerves are stretched, compressed, or torn. This typically happens when the baby’s shoulder gets stuck after the head has emerged, a situation known as shoulder dystocia. Large birth weight babies, breech deliveries, and difficult deliveries are common risk factors.

Recognizing the Symptoms

brachial plexus birth injury

Several symptoms may indicate a brachial plexus birth injury. Look for a limp arm or limited arm movement. Check for limited motion in the shoulder or elbow, difficulty grasping, weakness, or numbness in the arm. Subtle changes can be significant, so careful observation is important. The Moro reflex, or startle response, might also be weaker on one side. It’s always recommended to immediately seek medical evaluation if you notice any of these symptoms.

Causes of Brachial Plexus Birth Injury

Several factors can contribute to brachial plexus birth injuries. Maternal diabetes is thought to possibly play a role in larger baby sizes, which can contribute as a risk factor for the infant due to their larger birth weight.

A larger baby, weighing over 8 pounds, 13 ounces, might experience difficulty passing through the birth canal. This can put a strain on the brachial plexus nerves. Shoulder dystocia, where the baby’s shoulders get stuck, significantly increases the risk.

Breech presentation, with the baby’s feet or bottom emerging first, also complicates delivery and increases injury risk. Prolonged labor can also contribute.

Diagnosis and Treatment of Brachial Plexus Injuries

Diagnosing a brachial plexus injury involves a physical exam and sometimes imaging studies such as X-rays, ultrasounds, MRIs, and nerve conduction studies. Nerve conduction studies are used to evaluate nerve function and assess the severity of nerve injuries. These imaging tests help evaluate potential injury to muscle tissue, bones, and other internal parts.

Mild cases may only require gentle massage and range of motion exercises. More severe injuries might require physical therapy, occupational therapy, and surgical treatment like tendon transfers to restore arm movement and muscle function.

Types of Brachial Plexus Injuries

Brachial plexus injuries vary in severity, affecting nerve root avulsion, rupture, or neuroma formation. Erb’s palsy impacts the upper nerves, potentially causing shoulder weakness, while finger movement is preserved. Klumpke’s palsy affects the lower nerves and results in hand and wrist paralysis. More severe forms like total plexus palsy, a complete paralysis of the arm, result in significant arm impairment.

Long-Term Implications and Support

While many babies recover fully, some might experience persistent arm weakness, limited range of motion, or arm paralysis. Continued physical and occupational therapies often aid recovery, and sometimes surgical intervention such as nerve grafts can improve nerve function. Finding support groups for families is essential to navigate the challenges of this birth palsy.

Legal Considerations

Birth injuries, even in mild cases, can result in both short-term and long-term medical expenses that some families find burdensome to handle on their own. This is especially true if other factors have contributed to these costs. Understanding the potential for compensation can be helpful in these situations. Therefore, if you are seeking a lawyer for a brachial plexus birth injury, consider consulting with an attorney.

A brachial plexus birth injury can lead to lifelong challenges. If negligence plays a role, an attorney can help you seek justice and compensation.

Conclusion

Brachial plexus birth injury is a complex and concerning issue for families. Prompt diagnosis and appropriate treatment, which may involve anything from nerve conduction study, and magnetic resonance imaging (MRI), to tendon transfer surgery, empowers infants to begin their recovery. A deep understanding helps families navigate potential long-term effects with informed choices and support.

Key Takeaways

  • Lyft cut insurance in Maryland from $1,000,000 to $125,000 during Period 2 — when a Lyft driver has accepted a ride and is on the way to pick the passenger up.
  • The $125,000 figure is the absolute statutory minimum under Maryland Public Utilities Article § 10-405.
  • Uber currently maintains the full $1,000,000 in Period 2 in Maryland. Lyft does not.
  • Maryland’s pure contributory negligence rule and statutory damages cap make this reduction unusually consequential for accident victims.
  • If you have been hurt in a Lyft-related crash in Maryland, contact Pinder Plotkin Legal Team at 1-888-844-5373 for a free consultation.