What causes burns during Lipo?

Lola.   Not sure i know what you mean about burns associated with liposuction, but there can be a "friction" type of burn or irritation secondary to the liposuction cannula rubbing the skin adjacent to the small incisions used in liposuction.  That type of burn can be prevented by dabbing antibiotic ointment around the incision sites. I have found this effective in preventing friction burns from the liposuction cannula. Also burns can be caused by laser lipo suction machines. Be sure to consult with a board certified plastic surgeon. Good luck!

Burns can occur from a laser used for "laser lipolysis" (Smartlipo), and also from ultrasonic liposuction. The laser and ultrasound devices used for liposuction generate heat that can lead to burns. Consider the tumescent technique of liposuction - the safest technique. 

A true burn can happen with liposuction devices that cause heat such as the laser lipolysis devices ( i.e Smartlipo) and ultrasonic lipo devices (i.e Vaser).  Some patients develop friction burns ( not really a true burrn) at the access sites from the cannula moving back and forth but those often heal without problems.