<prompt> Most common cause of epidural abscess -StaphylococcusStreptococcusGram negative bacilliMicroaerophilic anaerobic streptococci  <response>: Ans. is a i.e., Staphylococcuso Therefore spinal epidural abscess is much more common than the intracranial epidural abscess. Spinal epidural abscess is more common by a factor of nine to one.Causes of epidural abscess 