Diagnosis

Tests and procedures used to diagnose Stevens-Johnson syndrome include:

  • Physical exam. Doctors often can identify Stevens-Johnson syndrome based on your medical history and a physical exam.
  • Skin biopsy. To confirm the diagnosis, and rule out other possible causes, your doctor may remove a sample of skin for laboratory testing (biopsy).
  • Culture. Skin or oral culture or culture from other areas may be taken to confirm or rule out infection.
  • Imaging. Depending on your symptoms, your doctor may have you undergo a chest X-ray to check for pneumonia.
  • Blood tests. These are used to confirm infection or other possible causes.