Rainer Thiele deals with chiropractic and examines two questions: Is chiropractic treatment of lower back pain a successful therapeutic approach? Is chiropractic treatment a standard treatment for headaches? On the topic of chiropractic in lower back pain, a congress abstract was published by the author using the latest randomized clinical studies and discussed as a poster contribution to the 16th Congress for Health Services Research in Berlin. A systematic review answers the question about chiropractic treatment of headaches.