Why is my nose pinched at the bridge and what can I do about it? Why is it so disproportionate? (Photo)

Your nasal bones are narrow in the upper third of your nose. It also could be that it's so narrow but that your nasal bones flare out, making the part of your nose above it look narrow.   There are a few ways to correct that. Onlay grafts, osteotomies to reshape and reset your nasal bones, and nasal valve grafts to slide underneath the nasal bones. Which technique used will depend on your profile view. 

The information in the photograph is quite limited. I would suggest you visit a good plastic surgeon and discuss your aesthetic goals with the benefit of video imaging.

You can have a more refined nose that is
natural in appearance. I perform these surgeries with closed technique
to preserve the structure of the nose and minimize visible scarring.Kenneth Hughes, MDLos Angeles, CA