Hello and thank you for your question. A formal evaluation would be needed to determine the best treatment. There are both surgical and non-surgical options to correct your chin. We can place a chin implant, which is a quick surgical procedure. Many of my patients try to avoid surgery, however, so for those patients, we also offer non-surgical chin augmentation with injectable fillers. Fillers like Radiesse, Voluma, BellaFill, and Sculptra are injected into the area to improve the overall appearance of the lower face and balance the jaw and lip harmony. We use cannula injections to meticulously contour and project the chin, soften the chin along the jawline, and improve the chin crease. For improved jawline definition and decreased neck fullness, you would likely want to consider a deep cervicoplasty or "necklift" (possibly with a facelift). This is a very complex surgical procedure since it involves dissection and manipulation of the deeper neck structures (the anterior digastric muscles, submandibular glands, etc) and the anatomy is extremely complex in this region. For this reason, if you consider something like this, I would only recommend going to an experienced facial plastic surgeon like Dr. Donald Groves, or another surgeon with significant experience in complex face and neck aesthetic procedures. Otherwise you will end up with serious issues, or inadequate results that you will not be happy with. Implants are a great option once you are ready for permanent chin enhancement. I suggest getting a consultation with an experienced cosmetic dermatologist and facial sculpting expert, or an aesthetic facial plastic surgeon like Dr. Groves; we are both located right here in Los Angeles. Best, Dr. Emer