Liver cell breast augmentation generally refers to the method of stem cell mixed with fat particles co-transplantation for breast augmentation, which can significantly improve the survival rate of transplanted fat cells and promote the vascular regeneration of transplanted fat. However, there are also certain complications, mainly the following: 1, fat particles absorption, liquefaction: due to the injection of too many inactivated fat cells or uneven injection of fat, even if the fat stem cells have the effect of enhancing the stability of the transplanted fat particles cells, the central area may also have the phenomenon of gradual necrosis and liquefaction. In case of fat liquefaction, the fluid can be extracted by needle puncture at the edge of the liquefied area or in a hidden place nearby, or it can be flushed with antimicrobial agent and then wrapped with pressure. If the liquefied area is large, negative pressure drainage is required; 2. Infection: caused by the lack of strict intraoperative disinfection or by the original chronic inflammatory diseases in the breast and other parts of the body. Infection usually appears after 5-7 days, with local redness, swelling and heat pain in the breast, and in severe cases, local skin flushing and bruising or non-healing of the needle opening and pus flow. Once the infection occurs, it should be actively treated with antimicrobial agent, including local needle mouth change, generally the symptoms can be significantly eliminated after 3-5 days, in serious cases, the affected area should be incised, flushed with antimicrobial agent and remove necrotic tissue, after treatment can be cured; in summary, although stem cell breast augmentation has advantages over traditional fat breast augmentation, but there are also certain disadvantages, you need to choose a suitable breast augmentation method according to your actual situation .