Yes you are right that small hernias without intestines in it are hard to diagnose with ultra sound or scan examination. In such situation herniography helps. So go to a good radiologist and get herniography done. It will help. If you are interested to know more about inguinal hernias and our new method of inguinal hernia repair without mesh now called as "Dr.Desarda's repair" and now followed in many countries then visit to our website: http://herniasurgery.tripod.com