Approximately 1.5 to 2 million Americans participate in the martial arts. Injury anecdotes are reported from 10 years of providing medical coverage at martial arts activities. Included are data from two national Tae Kwon Do tournaments, one adult and one junior level. Previously unreported injuries, including a video-recorded fatality, demonstrate the danger inherent in participation. Of particular concern is the potential for serious neurologic injury. Recommendations are made for reducing the severity and frequency of injuries.