One Side of Nasal Bone is Wider Than the Other?

Most people have some facial and nasal asymmetry. This is often more visible in photos. That is because people are more used to their mirror image. A photo is reversed, bringing out asymmetries.

Nasal bones will not move if you haven't had recent trauma or surgery.
Third, you might have broken your nose and didnt' know it or it may be natural asymmetry as discussed above.

   You could have had a fracture or the bones could have developed in this fashion.  Rhinoplasty can provide for more even contours.  Find the plastic surgeon with ELITE credentials who performs hundreds of rhinoplasties each year.  Kenneth Hughes, MD Los Angeles, CA

The nasal bones usually become asymmetrical after repetitive trauma.  Medial and low lateral osteotomies will straighten the bones during a rhinoplasty procedure.  Look for a rhinoplasty surgeon for lots of experience, theses can be difficult

Yes, it is quite possible that one nasal bone is wider or thicker than the other. This may be  a normal variant or from past trauma.

This could either have resulted from your natural nasal shape or you could have had a past injury that resulted in movement of the nasal bones. If you've healed from an injury that occurred over three weeks ago, it is very unlikely that anything short of a surgical procedure will change the shape of your nose. Massage or finger-tip pressure might work right after an injury but once the bones have healed, they will not move without being carefully cut and reset. I hope this information is helpful.Stephen Weber MD, FACS

Facial asymmetry is normal. The difference you describe can be corrected if it is noticeable and distracting. However, prolonged or repeated pressure will not change the position of the nasal bone. Yes it is possible that your nose was broken as an infant, unnoticed by caring parents. 

Dear Steven, Uneven nasal bones is not an uncommon occurrence. You may have had an early trauma to the nose where it was fractured and you just did not know it or it may be a natural occurrence. Typically applying pressure to the bone will not "set it" straight. This is done during rhinoplasty surgery in a process called osteotomies where the nose is fractured and aligned evenly. Best regards, Michael V. Elam, M.D.