A doctor i just met, took a quick look down my nose and said that i have a deviated septium without taking any ct scan. can one tell by a quick glance? should i go for a second opinion?

Yes: It is quite obvious on a simple exam.

DEVIATED SEPTUM: Deviated nasal septum mostly diagnosed by a simple visual exam with a good light source; does not need ct scan. A ct might be needed to see other associated abnormalities which is the cause of dns, e.g. Nasal polyp, sinus issues etc. Other way to diagnose and see the surrounding structures is nasal endoscopy by an ENT specialist. Mild dns can be treated symptomatically, if significant, surgery.

So what?: 80% of people have a deviated septum, which means only 20% have a straight one! if you aren't having symptoms from it, like nasal obstruction, snoring, certain types of nose bleeding, and rare types of headaches, there is no reason to worry about a deviated septum. If those are symptoms you suffer from, then a routine exam by an ENT or other md should detect a septal deflection.

Deviated septum: Hello, a deviated septum can be identified easily especially if there is a shift in the anterior or front part of the nasal cavity. It is probably a cause of your nasal congestion. So yes, if the doctor has experience with the nasal anatomy, a deviation can be diagnosed with a quick glance.