Abstract: A device for monitoring a use of a medical video endoscope (1), comprising a processing system (4) having an input for receiving color data signals (5), comprising a set of color data components, said processing system (4) comprising a color analysis unit (21), provided for selecting at least one of said color data components, and for determining for each of said selected color data components an intensity value, said processing system further comprising a memory (10-12) for storing at least a first color value reference range, indicating first color intensity values obtained upon use of said endoscope, said memory being connected to an input of a verification unit (25), said verification unit being provided for determining a second color value on the basis of said intensity values, and for verifying if said second value is within said first color value reference range, said verification unit being also provided for generating a flag, indicating said use, upon establishing that said second color value is with