- Nasal diseases are a category of conditions encompassing various diseases and injuries that affect the nose and nasal cavity, rather than referring to a single disease.
- Causes vary depending on the disease, including allergies, infection, inflammation, structural abnormalities, trauma, and environmental stimuli.
- Nasal diseases can interfere with one or more of the following: airflow, mucosal inflammation and secretion, sinus drainage, or olfactory function.
- Representative manifestations include nasal congestion, rhinorrhea, sneezing, epistaxis, decreased olfaction, nasal structural abnormalities, nasal polyps, and nasal bone fractures.
- Symptoms and progression may vary depending on age, comorbidities such as allergies or asthma, exposure to smoking and irritants, presence of trauma, and anatomical differences.
- The course ranges from temporary infection or irritation to recurrent or chronic inflammation and persistent structural issues, which can affect the comfort of sleep and breathing.
- Diagnosis begins by confirming the onset and pattern of symptoms, triggers, trauma, and comorbidities, and by examining the inside of the nose; endoscopy, allergy testing, or imaging studies are considered as necessary.
- Since nasal congestion or rhinorrhea can appear in various diseases, the cause cannot be determined by symptoms alone, and test results must be interpreted together with the clinical context.
- Management is carried out by tailoring to the cause and severity, combining avoidance of irritants, nasal hygiene and symptom relief, management of comorbidities, and procedures or surgery if necessary.
- The choice and effectiveness of treatment vary depending on specific diagnoses such as rhinitis, nasal polyps, septal deviation, epistaxis, or fractures, and there is no single standard treatment applicable to all nasal diseases.