How common is Erb’s palsy (brachial plexus birth palsy) in newborns?

How common is Erb’s palsy (brachial plexus birth palsy) in newborns?

Erb’s palsy occurs in 0.9 to 2.6 per 1,000 live births or nearly 12,000 cases per year. It's most common in larger infants who need to be pulled out during delivery because they’re stuck.