Dear hallas333,
Thanks for the query.
Bluish discoloration of the nose could be due to various causes such as easy bruising tendency (blood related disorders), cold weather, hay fever, nasal surgery, fracture of the basilar bone in the skull, genetics, or normally in fair skinned people, etc.
Your doctor could have suspected the discoloration to be either due to nasal trauma or some blood related disorders. Many a times, the bluish discoloration is also seen in thin and fair individuals as the blood vessels below the superficial skin layer appear prominent and this is a normal phenomenon.
I do feel it could be a normal discoloration, as there is no previous history of trauma over the nose or easy bruising over joints or other places exposed to trauma, etc. Easy bruising is seen in blood related disorders (problems with the blood vessel or the blood itself); to mention a few - Hemophilia (coagulation problems), Leukemia (blood cell disorder), Scurvy (Vit C deficiency), Vit k deficiency, etc. or as a normal phenomenon in few females which is purely benign.
To sum it up, I believe the discoloration of the nose could be a normal thing. If your doctor still suspects the possibility of any of above mentioned conditions you can undergo a battery of tests to rule out the same.
Hope that this information helps and hope that you will get better soon.
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Best Regards,
Dr. Naveen Kumar.
I should add that I'm a 36 year old white female in good health. I have no unique medical history except that I have had three c-sections in the past six years. I don't smoke and have 2-3 drinks a week. There's nothing really exceptional about my medical history.