Nose numbness may be caused by environmental factors, nasal inflammation, tumor disease and other reasons. 1. Environmental factors: long time in the cold environment, the nose of the blood circulation is not smooth, feel the nose numb, out of the cold environment, pay attention to keep warm can be relieved. 2. Inflammation of nasal cavity: such as sinusitis, rhinitis, etc., due to the stimulation of inflammation, the nose feels numb, accompanied by nasal congestion, runny nose, sneezing and other symptoms. 3. Tumor disease: for example, nasal tumor compresses the nerve of nasal mucosa and causes numbness of the nose. 4. Other diseases: such as diabetes complicating peripheral neuropathy, acute attack of cerebrovascular disease, etc., can cause numbness of the nose. Nose numbness, there may be other reasons, it is recommended to consult a doctor to identify the cause of the disease and follow the doctor’s instructions for treatment.