Liposuction has become a familiar cosmetic procedure, but some people have questions: why can’t doctors pump more? The more liposuction is done, the faster you lose weight. The most important thing is that you have to be able to get the best out of it. Liposuction should be done in small amounts many times, otherwise it can easily lead to excessive bleeding or anesthetic poisoning, and liposuction should be performed in a sterile environment. The safe amount of liposuction at one time is less than 2,000 ml. Generally, outpatient suction is 800-1,000 ml, and inpatient can be around 2,000 ml. If the desired result is not achieved at one time, further aspiration can be performed by reoperation. However, many foreign scholars believe that in terms of the purpose of fat aspiration, the significance of body sculpting is much greater than weight loss itself, so the focus of fat aspiration is to create a perfect shape, and of course, weight loss is also one of its purposes. For a patient who is not very bulky, there is no need to remove all the fatty tissues in one area, as hundreds of milliliters of fatty tissues can be removed to make a big difference in the shape. If the aspiration is particularly thorough, the postoperative shape is often not ideal and the texture and shape of the skin is likely to show some new deformities. There are many doctors who do not understand the detailed surgical operation and are not clear about the main points of the operation, and the imprecise grasp of the liposuction level is what leads to all kinds of complications. At the same time, not all fat people are suitable for liposuction surgery. Light and moderate obesity with local fat accumulation is suitable for liposuction, while people with heavy obesity (BMI higher than 35%) are not suitable for liposuction, because liposuction only targets the subcutaneous fat layer, and most people with obesity all over the body belong to visceral obesity, which cannot be solved by liposuction.