Depending on the amount of fat that you need removed from your body, there are different types of liposuction available.
The traditional form of liposuction, which most people are familiar with, is when a suction device is connected to a cannula. This is optimal for those who have large areas of soft fat, which is more easily released into the sucking device.
A more complicated form of liposuction involves ultrasound, which is generally used to target difficult areas of the body where fat can accumulate. For men, this would include the fibrous areas such as the chest.
The most recent type of liposuction uses cold water to break down fats in the body. Since it is so new, however, there is little research to show that this type of liposuction is preferable to other types.