Analysis of illness: Most of them are caused by congenital or childhood trauma. There are many reasons for nose skew, such as trauma, congenital development problems, acquired development problems and so on. It is necessary to correct the crooked nose. From a medical point of view, the causes of nasal deviation include nasal cartilage deviation and nasal bone deviation. Suggestion: If the nose is crooked due to trauma, it must be corrected six months to one year after the local tissue hyperplasia of trauma is stable.