Why is one side of my face skinner than the other? (Photo)

Facial asymmetry is present in everyone to some extent. It can be due to an asymmetric formation of the bones and/or the soft tissues. In more noticeable cases, if the patient desires to improve the symmetry, fillers, facial fat grafting and implants can be used.  It will be best to consult a board certified facial plastic surgeon in person and discuss your goals and options after a physical examination.Hope this helps,Ali Rıza Öreroğlu, MD FEBOPRASEuropean and Turkish Board Certified Aesthetic, Plastic and Reconstructive SurgeonIstanbul, Turkey

PatI appreciate your concern and your photo does demonstrate that it appears that the right side of your face is less full than the left. Facial fat grafting is an excellent option to correct this asymmetry. Consult with a board-certified plastic surgeon in your area to greatly increase your chances for the safest and best possible result. Good luck.

100% of people have facial asymmetry.
Everyone has a larger or dominant side of their face.
The body is also a symmetrical.
Perfect symmetry is not aesthetically desirable in my opinion. It looks awkward in the human mind is not a custom to it.
Great artists know this and always include natural asymmetry in great paintings and sculptures.
The primary underlying asymmetry is always skeletal.
Treating the asymmetry with soft tissue manipulation will create a new and often more unnatural asymmetry uneven soft tissue layers. for example if a transfer is used to treat skeletal asymmetry and the patient will still have bony asymmetry now also with fat layer of asymmetry. In my opinion the new asymmetry created when treating a primary facial asymmetry often looks less natural.
Lots of plastic surgeons focus on striving for asymmetry as an aesthetic ideal and goal and I would venture to say that the general population probably believes this is the correct approach.
Obviously a symmetry that is out of balance creates an issue but slight and subtle asymmetry is the norm and the human brain has adopted this to be what someone should look like.
Even  Mona Lisa and David were created with natural asymmetry.
My recommendation for you is do not look in the mirror and don’t worry about it. people can begin to obsess and this can become endless since there is no such thing as perfect facial symmetry.
Leave it alone. Know that everyone has it and focus on everything else in life that you do have control over.
Best, 
Mats Hagstrom MD