Lyme neuroborreliosis (LNB) caused by the spirochete bacteria Borrelia burgdorferi sensu lato complex is the most common bacterial neuroinfection in Denmark (180 cases per year). One of the main challenges to LNB is the diagnosis due to its variant manifestations often involving the skin, musculosceletal or nervous system affecting patient morbidity. Recent data shows a diagnostic delay of 21 days in laboratory-confirmed patients in Denmark. The aim of this review is to summarise current state of knowledge concerning clinical manifestations, diagnostic assessment, antibiotic therapy, and prognosis.