What is the possible cause for these asymmetric sunken cheeks? What kind of treatment should I get? (Photo)

I appreciate your question and concern. While we all have some level of asymmetry between the two sides of our face, your images indicate your asymmetry is noticeable. Since it is a concern for you as well, I encourage you to schedule an appointment with a board-certified physician that specializes in treatments using dermal fillers. Injectable fillers can add fullness and definition to the side of the face that is currently lacking, creating balance and a more aesthetically-pleasing facial contour. While these treatments offer temporary improvement, the results can last for many months up to two years.

Hi Joshua, there are numerous reasons why we experience facial volume loss. Volume / contouring of the cheeks and facial symmetry can be created with well-placed fillers (Voluma, Radiesse, Bellafill) and Sculptra. Fat grafting and surgical implants are alternatives. I recommend getting a formal evaluation with a facial sculpting expert who can determine the best solution for you based on your needs and budget. Best, Dr. Emer

Trauma- crush injury from a blow can cause fat atrophy. Genetically less volume in the buccal fat pads.  No face is symmetric and some are more asymmetric than others. Fat transfer is your best option.