Poor facial lines may be related to sunken face, high cheekbones, enlarged biting muscles, etc., which can be improved by facial fillers, zygomatic bone resurfacing, and face slimming injections. 1. Sunken face: Sunken temples or cheeks can lead to unsmooth facial lines, which can be enriched by filling hyaluronic acid, autologous fat, etc. to improve the unsmooth facial lines. 2. High zygomatic bone: If the zygomatic bone is too prominent, it will lead to unsmooth facial line. You can use zygomatic bone resurfacing to eliminate the hypertrophy and high zygomatic bone, so as to improve the unsmooth facial line. 3. Enlarged biting muscle: If the enlarged biting muscle leads to unsmooth facial line, the unsmooth facial line can be improved by injecting the thinning needle. It is recommended to go to the hospital in time for an interview and take the suitable way to improve the facial line.