Several conditions can lead to arm weakness in newborns. Some of the common causes include:
- Brachial Plexus Injury: This occurs when the network of nerves that sends signals to the arm is damaged during birth. It is sometimes the result of a difficult delivery, such as shoulder dystocia. - Congenital Muscular Dystrophy: A group of genetic disorders that cause muscle weakness and degeneration, which can present at birth. - Cerebral Palsy: A group of disorders affecting movement and muscle tone, often due to brain injury before, during, or shortly after birth. - Fractures: Broken bones in the arm, typically the clavicle, can occur during delivery and lead to weakness.
