Brachial plexus injury resulting in variable degrees of neurapraxia and axonotmesis may potentially recover spontaneously, whereas axonotmetic or neurotmetic injuries resulting in neuromas-in-continuity, nerve root ruptures, or nerve root avulsions will not. Along with clinical evaluation, various investigation like MRI, CT Myelography, USG and electrodiagnostic methods are there. The treatment of injury includes nerve transfers, nerve grafts and muscle transfers. This article discuss about newer developments of diagnostic evaluation and management of brachial plexus injury.