Nose can not smell the smell may be related to nasal septum deviation, nasal polyps, acute rhinitis and other diseases.
1. Deviated nasal septum: deviation of nasal septum bone and cartilage can easily lead to nasal ventilation obstacle, and in serious cases, the inhaled air can be blocked outside the olfactory region, and the odor molecules can not contact the mucous membrane of the olfactory region, which leads to the loss of smell or even disappearance of the sense of smell.
2. Nasal polyps: due to infection, allergy and stimulation of adverse physical and chemical factors can lead to the growth of nasal polyps, such as growth in the olfactory region, the mucosal epithelium of the olfactory region can be edematous, the ability to perceive the odor decreases, and the characteristics of the nose can not be smelled.
3. Acute rhinitis: mostly caused by viral infection, when the virus invades the olfactory region and acts on the olfactory nerve, and even damages the olfactory center along the nerve, it can make the olfactory sensation and conduction and other functions impaired, and cause the nose can not smell the taste.
The lack of smell may also be associated with atrophic rhinitis, trauma, and frontal lobe tumors and other diseases, and need to actively seek medical attention and systematic examination to clarify the diagnosis.