The amount of belly fat needed for DIEP flap surgery varies based on the size of the breast being reconstructed. Typically, surgeons look for enough abdominal fat to create a breast that matches your natural size or desired outcome. Women with a moderate amount of lower abdominal tissue are usually ideal candidates.
In general, if the patient has enough fat to pinch on the lower abdomen, they may be suitable for the procedure. For larger reconstructions, more fat is needed, but women with very low body fat may not have enough tissue for this surgery.