A deviated septum is when your nasal septum is deformed to one or both sides. These deformities can cause obstruction of the nostrils, nosebleeds, and interrupted sleep. The septum can be deviated due to nasal trauma, but often can be deviated due to no known injury (simply born that way). Many ENT doctors will recommend managing the symptoms with decongestants, antihistamines, or nasal steroid sprays. If these remedies do not alleviate the symptoms, sometimes surgery is warranted. This is typically referred to as a septoplasty.