The inability of the nose to smell indicates the presence of olfactory disorders, which may be related to deviated nasal septum, acute rhinitis, chronic hypertrophic rhinitis, nasal trauma, olfactory neuroblastoma and other diseases.
1. Deviated septum: Deviated septum bone and cartilage can cause odor molecules not to flow backward into the olfactory region during breathing, leading to decreased or loss of sense of smell.
2. Acute rhinitis: When viral infection causes disease, the toxin leads to inflammatory reaction of the olfactory nerve, which affects the olfactory conduction to the olfactory center, and the phenomenon of the nose not being able to smell the odor occurs.
3. Chronic hypertrophic rhinitis: chronic inflammation of the nasal cavity triggers bilateral hypertrophy of the inferior turbinate, nasal ventilation obstacles, airflow and olfactory elements can not enter the nasal cavity, and can not reach the olfactory region, resulting in the nose can not smell the odor.
4. Nasal trauma: Nasal trauma, such as damage to the olfactory region, edema, and olfactory nerve severance, you can have a decreased sense of smell or loss of olfaction, and the nose can not smell the smell of the performance.
5. Olfactory neuroblastoma: an aggressive malignant tumor originated from the basal cells of the olfactory nerve epithelium. With the enlargement of the tumor, symptoms such as nasal congestion, rhinorrhea and loss of sense of smell may occur.
The lack of smell may also be caused by intracranial tumors and other diseases, which need to be actively consulted and systematically examined for a clear diagnosis.