There are a host of issues that you bring up. Umbilical hernias come in a variety of forms. They can be just pre-peritoneal fat protruding through a fascia defect (as is usually the case) or a true hernia of bowel with a major defect. If the hernia is tiny, then liposuction can be performed using an umbilical incision as long as care is performed with the procedure to avoid the hernia. If the hernia is significant, then it could be repaired at the time of liposuction. Major hernia repairs are usually performed by general surgeons. The use of a Smartlipo laser assocaited with traditional liposuction in the presence of a major hernia, could potentially injury bowel (a major catastrophe). Smartlipo machines are sold to any physician who is willing to shell out the funds for this equipment irregardless of training or specialty. Since I do not know the qualifications of your doctor or the true nature of your hernia, I cannot comment about the appropriateness of your treatment.