Autologous fat breast augmentation is a common plastic surgery, which enlarges the chest by transplanting fat from other parts of the body to the chest. The amount of fat needed for autologous fat breast augmentation depends on many factors, including personal physical condition, chest size and shape, fat extraction and injection technology.

Generally speaking, the amount of fat needed to upgrade from B cup to C cup is about 100-300ml. The specific amount of fat needed also needs to be determined according to the individual's specific situation and the doctor's advice.

The effect of autologous fat breast augmentation is also affected by the survival rate of fat. During the operation, the extraction, treatment and injection techniques of fat will affect the survival rate of fat. If the fat survival rate is low, multiple injections may be needed to achieve the desired effect. Therefore, when choosing doctors and hospitals, we must choose experienced and skilled doctors and regular medical institutions to ensure the safety and effect of the operation.

Finally, it should be reminded that although autologous fat breast augmentation is an effective plastic surgery, everyone's physical condition and reaction are different, and the risks and limitations of the operation will vary from person to person. Therefore, before breast augmentation with autologous fat, it is recommended to fully understand the risks and limitations of the operation and make an evaluation and decision according to personal circumstances. At the same time, it is also important to keep an optimistic attitude and actively cooperate with doctors.

If you have specific questions or need more detailed information, it is recommended to consult a professional plastic surgeon or medical institution.