Hip dips show more on lean bodies — so the leanest patients ask most, and deserve the straightest answer.
Hip dip correction needs far less donor fat than a BBL: typically 150–400 cc per side plus processing margin, versus the litres global augmentation consumes. That puts it within reach of many slim patients who'd be (rightly) declined for larger transfers — the flanks, lower abdomen or inner thighs usually hold enough even on trim frames.
Very lean bodies — visible-ab, low-teens body fat territory — can genuinely lack harvestable reserve. Forcing a harvest from insufficient donor sites damages the donor area, yields poor-quality graft, and caps the result: three losses, no wins. When that's the honest read, you'll hear it from photos, not discover it on the table.
Two photos and one sentence. The assessment answers the exact question — your dips, your donor sites, your realistic result — free, and 'not enough fat' is an answer this practice actually gives.