Your question is quite vague or nonspecific.
Lipo means fat and fat is generally not burnt to the point of being an issue for many former liposuction.
I'm guessing what you're referring to our skin injuries.
Sometimes fat is purposely heated up or mechanically damaged on purpose using techniques such as lasers or ultrasound Devices such as VASER.
This generally when used correctly do not cause any burns or complications.
Skin injuries are rare after liposuction of any form.
The most common reason in my opinion someone would have a skin Andrea after liposuction is that the treatment or after care of the treatment causes a loss of blood supply to the skin causing skin process.
This can possibly happen from excessively aggressive liposuction especially in someone who has underlying medical conditions or is a heavy cigarette smoker.
It can also happen during fat transfer procedures if too much fat is grafted in a single area causing so much pressure that the skin does not receive its blood supply.
Perhaps the most common reason is large areas being bandaged with tape after these procedures.
The area treated will swell but it taped does not expand causing tension on the skin which will cause the skin to lose its blood supply.
This usually causes blisters to form.
Excessively tight dressings such as stacked up layers of gauze under an excessively tight compression garment could potentially also cause problems with blood supply to the skin.
Most laser assisted liposuction devices do not generate enough heat or power to have even significant changes in the liposuction outcome let alone skin burns.
I suppose it's possible to have the energy settings on the highest level and passing the laser directly on the skin causing skin burns.
My best guess is the most common reason patients have skin injuries after liposuction is the inappropriate and excessive use of tape covering the incisions not allowing the skin to stretch after the procedure.
My practice is devoted exclusively to liposuction and fat transfer.
I have had one significant skin injury from arm liposuction.
Having done close to 3000 liposuction procedures the chance of having a skin injury is exceedingly low when the procedure is done correctly.
In this case the problem was due to using tape after the procedure.
Since then we do not use tape but allow the pressure garments to hold absorbent gauze in place over the incisions.
Mats Hagstrom M.D.