During your visit, your doctor will first ask about any symptoms you may have.
To examine the inside of your nose, the doctor will use a bright light and sometimes an instrument (nasal speculum) designed to spread open your nostrils. Sometimes the doctor will check farther back in your nose with a long tube-shaped scope with a bright light at the tip. The doctor may also look at your nasal tissues before and after applying a decongestant spray.
Based on this exam, he or she can diagnose a deviated septum and determine the seriousness of your condition.
If your doctor is not an otolaryngologist (ear, nose and throat specialist) and treatment is deemed necessary, you may be referred to a specialist for further consultation and treatment.