In recent days, my mother and Xiao Ming always smell a bad smell when they sleep together, and they have looked at it from head to toe-no problems have been found. As the days passed, the smell became stronger and stronger. If you look closely, it seems that the smell of Austria comes from your nose. What causes the nose to stink? Helpless, I had to take him to the hospital for examination. I saw a cellophane ball stuffed in Xiaoming's nose. My mother suddenly realized that Xiao Ming had stuffed the paper ball into her nose himself. This disease is clinically called nasal foreign body. Preschool children, especially young children, often put some small toys or other things, such as small stones, small building blocks, rubber whistles, buttons, rubber heads, flower seeds, beans, nuts, bottle caps, paper balls and so on. Enter the nasal cavity because of curiosity or mischief. I don't know that it's easy to stuff people, but it's difficult to take them out. Sometimes I dare not tell my parents. So the foreign body stays in the nasal cavity. In addition, some children have nasal vestibular eczema, itchy nose, and are used to rubbing things to stop itching. There are also some cases that are caused by human beings. For example, when a child has a nosebleed, cotton balls, paper balls and gauze are stuffed to stop bleeding, and they are forgotten to take them out. Any foreign body staying in the nasal cavity will cause a nasal cavity blockage and poor ventilation. Due to the stimulation of foreign bodies, nasal mucosa congestion and edema, nasal mucus increased. At first, it was mucus, and gradually it became purulent due to the secondary infection of nasal mucus. Long-term puncture of foreign bodies can also cause mucosal erosion and granulation growth, leading to nose bleeding or bleeding. At this time, you can smell an evil smell coming out of your nose. When you see a child's nasal cavity blocked, bloody or purulent nasal discharge and unpleasant smell, you should first think about whether his nasal cavity is filled with foreign bodies and take him to the hospital for examination.