The septum is really a cartilaginous sheet that separates the right and still left sides of your nose. It isn't completely straight. Once the septum bends noticeably (this is a deviation), it might block the air passage on a person or either side, which makes it challenging to breathe. Remember https://deanabzxv.techionblog.com/38026441/the-smart-trick-of-rhinoplasty-that-no-one-is-discussing