Nasal septal deviation refers to the situation where the cartilage and bone tissue of the nasal septum lean toward one side of the nasal cavity, representing a structural deviation. However, having just this deviation is insufficient for a complete diagnosis of a deviated septum. Symptoms such as nasal congestion, nosebleeds, and headaches must also be present to fully diagnose it. Treatment for a nasal septal deviation often involves surgical correction; however, surgery is not necessary for asymptomatic individuals with mere structural deviation. Surgery is opted for cases with structural deviation accompanied by symptoms like nasal congestion, nosebleeds, and headaches.