There are three main hazards of self-fat filling breast augmentation as follows: First, infection, because self-fat has to be taken out from other parts of the body and then injected back into the chest, the operation is more, both the part where the fat is taken and the chest where the fat is injected, infection may occur. Once infected, it will cause the consequence of failure to self fat breast augmentation. If the infection is local, you can take oral antibiotics, if the infection spreads to the whole body through blood, you need to use antibiotics intravenously. Second, fat liquefaction, the fat injected back into the breast will not be fully viable, generally the survival is about 60%. Some of the fat that does not survive will be discharged from the body with the circulation, and the other part may be liquefied. Once liquefaction occurs, the breasts may be locally sunken, and sometimes there may be pus and fluid flow, leading to breast augmentation failure. Third, fat breast augmentation can rarely be made in 1 time, usually 2-3 surgeries are needed, and each surgery has the risk of infection or fat liquefaction, which brings certain trauma to the patient’s body and mind.