The present invention relates to a collecting device comprising a collecting device for collection of body fluids. The invention relates to a collecting device arranged in a compact configuration wherein the dimensions of the collecting device is small in comparison with the dimensions of the collecting device in an unfolded configuration. In particular the invention relates to a bag having an inner folding and an outer folding. Two pull points may further be arranged so that the application of oppositely directed forces to the first and second pull-points will lead to unfolding of the inner folding. With this arrangement the outer folding may be forced to unfold as the inner folding unfolds.
