This Fishbone Diagram Medical allows team members to visually diagram the root causes of a problem or condition, allowing them to diagnose the problem rather than focusing on symptoms truly. It enables team members to separate the content of an issue from its history, enabling team consensus on the problem and its causes. A Fishbone Diagram Medical, also known as an Ishikawa diagram or a cause and effect diagram, is a patient safety tool used to investigate the underlying cause of a health problem or condition. As the name implies, a fishbone diagram resembles a fish's skeleton. The 'head' of the fish is the main problem or outcome, while the structure or 'ribs' contain the possible root causes.