Thank you for your question. Everyone naturally has some facial asymmetry. From the photo that you have provided, you can either treat your lips non-surgically with dermal fillers or surgically via fat transfer to the lip. The non-surgical treatment will last for approximately 9 months to 1 year, depending on the filler used. If you are looking for something more long term, fat transfer to the lip may be more appropriate. The benefits of the dermal fillers is that the product can be deliberately placed. Not all of the fat from the fat transfer will stay in the lip, so the final result will be a little less precise. There may be some asymmetry in the final result, but the results should still look natural. Going forward, I would recommend you to complete multiple in office consultations with board certified plastic surgeons to discuss your aesthetic goals. This way, they can work alongside you to determine your best treatment option. Best of luck, Kian Karimi MD, FACS