The fastest and most effective way to reduce belly fat is to undergo liposuction. Liposuction is a procedure that removes excess fat from under the skin through the principle of fat suction. Prior to suction, ultrasound treatment through extracorporeal ultrasound is required to break up the local fat tissue and suction is performed through a specific small hole, such as a hidden umbilical hole, with a blunt tube to extract the broken up fat tissue out of the body. The skin and subcutaneous tissues form a cavity after fat aspiration and are connected by spongy tissue-like subcutaneous tissues, and as the skin and subcutaneous tissues re-adhere, the skin regains its elasticity, which is a relatively straightforward method of fat reduction in the small abdomen. Through the above methods, subcutaneous fat in the small abdomen can be effectively removed and is an effective complementary method to physical exercise or dietary therapy. Small abdominal fat is more difficult to reduce, through physical exercise, such as swimming, sometimes difficult to reduce the small abdomen, can be handled by liposuction surgery. Liposuction surgery causes less local damage and is a minimally invasive procedure.