I have a hump on the left side of my nose. It feels very thin and pointy. The right side is just normal (Photo)

Based on you photos, the bony prominence appears to be due to step off between the nasal bones the underlying nasal cartilages. This is often caused by previous trauma but can be genetic as well.

A cosmetic rhinoplasty the surgery of choice to correct these deformities and reposition the tissue in the nose for better aesthetics. This often involves removing the dorsal humps and narrowing the width of the nose. This can be achieved through a closed or open approach but is typically done in the OR under anesthesia. 

See the link below for more info.

A detailed examination will help delineate the best treatment. Consultation with a plastic surgeon certified by the American Board of Plastic Surgery would be the next best step.

Thanks for your question.  That thin raised area can be due to either prominent nasal cartilage or bone.  It is likely more prominent on you due to your thin skin and likely previous nasal trauma in the past.  Don't worry it can easily be fixed thru a rhinoplasty.  Please see a qualified rhinoplasty surgeon for best results.

Hello and thank you for your question. This is likely but could also be cartilage.  This can be fixed with a rhinoplasty.  Make sure you specifically look at before and after
pictures of real patients who have had this surgery performed by your surgeon
and not just a computer animation system. The most important
aspect is to find a surgeon you are comfortable with. I recommend that you seek
consultation with a qualified board-certified plastic surgeon who can evaluate
you in person.
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon