The liposuction consists of removing pockets of fat beneath the skin?s surface by inserting a hollow steel tube, called a cannula, into the affected area. Fat is then removed from the body by attaching a powerful vacuum to the cannula, which allows the cosmetic surgeon to work with localized areas. As with any type of surgical procedure, there are risks involved. Liposuction is considered one of the safest cosmetic surgeries. Some risk factors include scarring, adverse drug reactions or overdose from the lidocaine used in the procedure, shock, infections, nerve damage, bleeding and blood clots, and uneven removal of fat deposits. Those with a history of heart disease, diabetes, high blood-pressure, allergies and smoking should discuss their medical history thoroughly with the cosmetic surgeon to determine their risk of complications with this surgery.