Liposuction can only help people lose weight, but it has no preventive or ameliorative effect on health problems caused by obesity, such as cardiovascular diseases and diabetes. Liposuction can only remove the fat under the skin of obese people, which is the least harmful to health. Animal experiments show that visceral fat accumulation is the chief culprit of hyperlipidemia, which reduces the sensitivity of human body to insulin and increases the risk of diabetes. They may also secrete some substances that can cause inflammation, which may lead to cardiovascular diseases. These substances can also directly enter the liver, making it impossible for the liver to normally control the contents of blood sugar and cholesterol in the human body. Liposuction is only a plastic surgery at most, and it is not harmful to health.