There are quite a few liposuction techniques. Some of the older techniques, such as dry technique, are no longer considered safe. Newer techniques that are considered safe include tumescent liposuction, ultrasound-assisted liposuction, and laser-assisted liposuction. All of these are usually done as an outpatient procedure and don't require an overnight hospital stay. Each technique has different features and benefits. Your surgeon will choose the best liposuction procedure for your individual needs.