Will a septoplasty make my nostrils perfectly symmetrical? (Photo)

Deviated nasal septum and nostril asymmetry: when the septum is badly deviated it causes multiple associated asymmetries, such as in your case, nostril asymmetry. The rhinoplasty and septoplasty that is performed to correct this generally makes a dramatic improvement in these asymmetries. However you use two words that no honest plastic surgeon would ever use. These are “guarantee“ and “Perfect“. It is generally known among plastic surgeons that a severely deviated septum cannot be made perfectly straight. They are often small residual asymmetries. an honest plastic surgeon will tell you that. So frankly if one “guarantees“ you a “perfect“ nose with no residual asymmetry that is the surgeon I would avoid.

No respectable plastic surgeon should guarantee any specific result. The human body is always subjective to different types of healing. A well performed septoplasty can certainly give you a good improvement, but other rhinoplasty techniques may be needed in addition to the septoplasty. Be sure to see an rhinoplasty specialist for consultation.

Nobody will guarantee perfection; there's just too many variables associated with healing that might alter a result. However, you should expect a substantial change and possibly a result that seems perfect.