Really intelligent question. Although SculpSure appears to be safe, some of the above answers are from docs who don't seem adequately informed on SculpSure and lasers in general. I, and the FDA, believe that SculpSure is safe. Otherwise I wouldn't be treating my patients, staff, and family. However, less than 200 patients were treated prior to FDA approval last May, and less than 19 prior to 2013. We didn't know some of the side effects of CoolSculpting until we had follow-up on thousands of patients. So, we do NOT know if there are any long-term side effects. There is evidence that infrared wavelengths might cause the body to need DNA repair (search: Low-intensity red and infrared lasers affect mRNA expression of DNA nucleotide excision repair in skin and muscle tissue), a sign that the technology can likely injure DNA. And, there is still some concern that lasers may cause cancer in birthmarks (go to Pubmed and search Lasers for nevi: a review)That said, diode lasers (the type SculpSure uses) first came into clinical practice in the mid-1990's, so there is a long track record of safety in general. Also, the fact that SculpSure produces low-level energy with heating only to about 45C is very reassuring.Cynosure, the manufacturer, SPECIFICALLY recommends caution in patients with a history of squamous cell carcinoma, melanoma, immuno-suppressed state (such as HIV), or nerve problem (such as diabetic neuropathy). If there is any concerning mole or cyst over the site to be treated, I remove it. For patients where I have a level of concern, I have consulted with Cynosure's Medical Director directly, because patient safety is always the number 1 priority.