This varies from person to person. Generally take the fat at the root of the thigh, because which part has more fat.

If the stomach is fat, take it from the stomach, not the thin one.

On the arm, that is, you can touch it yourself.

But my personal suggestion is that you can exercise, because the operation is traumatic and bad for your health. In case of rejection, it will have a great impact on your hips and body.

I hope you can think it over.