Do all Caucasians really have a bump on the bridge of their nose?

Compared to peoples from all ethnicities, in our experience, people with lineage  from northern Europe often have a boney convexity (bump) on their nasal bridge. Sometimes this can be felt but not seen, and other times it is visible. When it becomes 'large' it sometimes becomes bothersome to an individual and can be surgically reduced. But just the presence of a small bump is not a problem nor is it unattractive, in our opinion. 

     No, all Caucasians do not have a bump on their noses.Kenneth Hughes, MDLos Angeles, CA ................

I have to say that this is not the case. If you look at the people around you you'll notice that some have bumps, some have straight bridges and some have low bridges. There is alot of variability regardless of the ethnicity. I hope this information is helpful for you.Stephen Weber MD, FACSDenver Facial Plastic Surgeon

Not all individuals have nasal bumps or the same facial characteristics, no matter what their ethnic background.Robert Singer, MD  FACSLa Jolla, California 

Not everyone has a bump on their nose. Noses come in all different shapes and sizes,  so some have bumps and some do not.

The answer to your question is no.  Notice people in public places, such as airports, shopping mall, etc.  You will see many different noses.  People come in all shapes and sizes.