Choose Inspect tab→Evaluate group→Geometry Inspector.
In the Geometry Inspector dialog box, from the Inspect list, specify the geometry you want to inspect.
Specify what you want to search for in the model by selecting either or both check boxes:
Faults
Small entities
Click Go.
Tip:
Use the Small entities option to find the small faces and edges that produce errors when meshing a model for finite element analysis. You can choose whether you want to search for Faces, Slivers, or Spikes, and you can specify a tolerance value for the search.
When the Results are displayed, you can:
Expand the tree to select an individual fault and review its description, or you can select a small entity and display its size.
Click any node in the Results list to highlight the corresponding geometry in the graphics window.
Use the Fit button to zoom in and fit all of the highlighted geometry to the window.
You can use the Heal Body Faults option to remove faults from the bodies returned by the geometry inspector. This option is only enabled for body constructions or design bodies that do not have dependent features, or associative links.
An icon, 
, is displayed next to any faults returned by the Geometry Inspector that are not valid for healing, along with a description of the problem.
Note:
The Heal Body Faults option does not support small entities, so an icon is not displayed next to any small entities returned by the Geometry Inspector.
You can save the geometry fault data to an ASCII document with the Save As button on the Geometry Inspector dialog box.