The anterior mandibular sulcus is a triangular area with the tip pointing forward toward the chin and the base located at the lower edge of the lower jaw. With aging, the loss of volume of the mandible and surrounding soft tissues and the relaxation of the mandibular ligament connecting the surface of the mandible to the skin surface are the main reasons for the appearance of the anterior mandibular groove; also due to aging, the soft tissues attached to the outer side of the mandible gradually sag, resulting in the accumulation of soft tissues at the lower edge of the mandible, causing the loss of a smooth curve between the chin and the angle of the mandible and aggravating this ” anterior mandibular groove” pattern. The combined effect of these factors is that the youthful curved and smooth lower jaw margin becomes an irregular W-shaped appearance of aging. In patients with mild jaw soft tissue sagging, injectable fillers are highly effective in rejuvenating the jaw contour, even surpassing the results of traditional surgical procedures. For patients with sagging skin and pronounced anterior jaw furrow, a combination of treatments should be considered to obtain satisfactory results. For patients with significant soft tissue sagging of the jaw, a greater degree of filler is required to produce results, and for patients with severe sagging, injectable fillers alone will not solve the problem.