Classification of topical methods of treatment of obesity of the trunk and limbs: Non-invasive methods: These methods use devices that use magnetic waves, radio frequency or low power laser for local melting of fat, which have different penetration into the tissue depending on the type of device and its power, the most valid of which include:   
RF : Radiofrequency is one of the devices that in addition to melting fat locally with a penetration of about 3 mm in the subcutaneous tissue causes collagen production and tissue lift. Of course, the rate of response is directly related to the quality of the device and the country of manufacture, which European types are really more effective than Korean or Chinese types.  
CAVITATION: This device with magnetic waves and radio frequency causes bubbles inside fat cells that eventually cause their death. This device with a penetration of about 5 ml in the subcutaneous tissue as a complementary device with RF is very effective and has proven good results.  
CRYO: Cryo device freezes fat cells and destroys them by creating localized cold at a depth of 3 to 5 mm from under the skin.  
LPG:  Advanced lipomassage, or LPG, through the rollers that massage the adipose tissue, increases blood flow to the adipose tissue and accelerates their melting, especially brown fat. In addition, this device is a unique tool for removing cellulite and 
areas of orange peel, and is also an excellent complement to other devices.   
More aggressive methods :  
Liposuction: In these methods, which is one of the oldest and oldest methods of removing fat from the subcutaneous tissues. After injecting the special liquid under the skin and softening the fats, it eats them mechanically (with the movements of a special device under the skin) and removes them. This procedure is often performed under local anesthesia, but general anesthesia may be needed if the fat is large. One of the disadvantages of this method is the possibility of fat embolism, which is a deadly complication.  
Laser lipolysis: In this method, such as liposuction, a special solution is first injected under the skin, then the fat is melted and then removed by inserting a high-power laser probe under the skin with a laser beam. Among the advantages of this method to conventional liposuction, there is no risk of fat embolism and a smoother and smoother removal of fat. One of its 
disadvantages is that it does not use the extracted fat for injection and it is time consuming. This procedure can also be done under local anesthesia or general anesthesia.  
Lipomatic: This method is one of the most emerging methods of removing localized fats. In this method, a special solution is first injected under the skin and then by moving the probe, which creates vibrations in different directions with the force of compressed air, it breaks the fats and It drains through a suction inside the probe, and due to its high power, it is suitable for draining large volumes of fat. The probe of this device is equipped with sensors that stop moving when it reaches the blood vessels, and therefore the danger. Fat embolism is very low in this method. One of the weaknesses of this method is the possibility of bleeding under the skin, which is often insignificant and stops in the first 24 hours to the first 48 hours.  
PO WER ASSISTED LIPOSUCTION – PAL:  
In this method, a cannula is used to break and shatter fat cells, the tip of which has a slight vibration so it is easier to move inside the fat tissue and allows the surgeon to perform more accurate and one-handed liposuction. . Its disadvantage is the lower speed compared to lipomatic and waterjet. 
WATER JET : In this method, by inserting the probe into the adipose tissue and injecting water with very high pressure, it breaks the fat and removes it through suction. This method has not been sufficiently tested yet and its results are unknown compared to other methods and we still have to wait for more information.