The size of the nose is mainly determined by the congenital genetic factors of the parents, and if the parents have a large nose, the child born may also have a large nose. The nose is mainly composed of nasal bones, cartilage, and subcutaneous fat, and it is generally difficult to change this size later in life. Clinically, the size of the nose does not affect the function of the nose itself, it has little effect on the ventilation of the nasal cavity, the smell of the nasal cavity and the moisturizing function of the nasal cavity, so do not believe that a large nose is a sign of good fortune, there is no specific theoretical scientific basis for this. Clinically, if a patient has a large nose or a small nose, it does not mean anything clinically, as long as the nose function is normal.