Picking your nose is a very bad habit. It is recommended that patients correct this habit. Clinically, there are mainly the following hazards: 1. If you repeatedly pick your nose for a long time, it is easy to damage the skin of the nasal vestibule and the mucosa at the front end of the nasal septum. Damage to the nasal vestibule can easily lead to nasal vestibulitis, local dryness and pain of the nasal vestibule, and even nasal furuncle, which will damage the mucosa at the front end of the nasal septum, because the submucosal blood vessels are very rich, which is easy to cause arterial bleeding in Leigh's area of the nasal septum, which will lead to serious consequences once it appears; 2. Repeated nose buckling will lead to sparse nasal hairs in nasal vestibule and nasal septum mucosa. Once the nasal hair is scarce, the nasal cavity will lose its first defense system and it is very easy to get upper and lower respiratory tract infections; 3. People will bring viruses and bacteria into the nasal cavity in the process of repeatedly picking their noses, which is particularly easy to induce upper and lower respiratory tract infections.