Extracting Palm Lines as separate contour (opencv)

Hi All I am working on extracting Palm Lines from an image. I reached to a point where I am able to extract Palm Lines as contour but problem is : when any palm line is intersecting each other then FindContour() function is considering those two palm line as a single contour which is failing my requirement. I need each palm line as separate contour using openCV. I am basically applying FindContour() on line image of Palm ROI.Do I we have some other function for this or any other algo if anyone know, Please suggest. Thanks Kavita