Does cocaine use cause a deviated septum? I have done a septoplasty and part of me is worried that I may have done damage to my septum to the point that I needed surgery. I may be wrong and it may have been congenital and my septum was doomed in the first place. I did not mention to my ent doc that I used. Would they let me know the cause was drugs if I did not say anything? Do repeated sinus infections cause permanent breathing issues later on/ does a deviated septum get worse as one ages?