I can understand why this would be frustrating, especially after undergoing a face and neck lift with the goal of achieving a smoother, more youthful contour. When a depression or "ditch" develops beneath the chin after liposuction, it is often the result of over-reduction of fat, scar tissue formation, uneven healing, or a combination of these factors. The encouraging news is that these types of contour irregularities can often be improved. The challenge is determining exactly what is causing the indentation. If the issue is primarily volume loss, one of the most common solutions is restoring volume to the area. This may be accomplished with: Fat grafting (transferring your own fat) Soft tissue fillers Other volume-restoration techniques If the indentation is being tethered by scar tissue, releasing those fibrous attachments may be necessary before or in conjunction with adding volume. In some cases, the scar tissue itself is the main culprit rather than the absence of fat. Because your surgery was performed 2.5 years ago, the tissues have likely reached a stable state. This is actually helpful from a treatment-planning perspective because what you're seeing now is likely close to the long-term result rather than ongoing healing. As for how many procedures it may take, there is no way to accurately predict that from photographs alone. Some patients achieve a meaningful improvement with a single corrective procedure, while others benefit from a staged approach. Fat grafting, in particular, sometimes requires more than one session because a portion of the transferred fat may not survive long-term. One thing I would emphasize is that perfection is rarely the goal in revision surgery. The objective is usually to restore a smoother, more natural transition beneath the chin and improve overall neck contour. Even when complete correction is not possible, significant improvement is often achievable. Try not to lose hope simply because the result wasn't what you expected. Revision procedures for contour irregularities are not uncommon, and many patients are able to achieve a much more balanced appearance once the underlying cause of the indentation is identified and addressed.