mark gentle , from farmington , maine , found his son carter sobbing because he thought that the scar from his fifth open-heart surgery - an emergency procedure to repair his pacemaker - was ` ugly ' .
the concerned dad posted a snapshot of the little boy 's chest to his facebook account in the hopes of generating some wider support .
mark , who only expected likes and comments from his facebook friends , told today he and his wife sarah were amazed when the photo received 200,000 likes in the first day .