A simple tools for exploring pain diseases are pain drawings. They are used by scientists from all over the world and consist human body outlines where patients can mark their pain. Pain2D are free software under the GPL v.3 licence. Pain2D was developed for researchers to allow faster, easier and free of charge pain drawing analysis. Pain2D is not a diagnostic tool. Thanks to our free friendship cooperations with many researchers from medical, social science and computer science fields we can test...