There are areas that are less amenable to liposuction, and, as your question states, inner thighs are bad areas to liposuction aggressively. In general, the buttocks itself is not liposuctioned. We liposuction around it but very infrequently will we liposuction the buttocks itself. The upper arm from the elbow down is not liposuctioned and, in general, the face itself is not liposuctioned, although the area under the chin is a common area where liposuction is utilised.