Thanks for the wonderful 2 questions. In a nutshell, it is common to have "some" bruising after liposuction under the chin. Typically it is quite minimal. You should prep well by making sure you avoid any blood thinners including some types of vitamins. Most bruising can be covered up relatively well with make-up soon after the procedure.As far as correcting the apnea, standard submental/chin lipo would not effect your apnea one way or the other. Depending on the type of compression dressing your surgeon uses (and any self wrap you use after the main wrap is no longer needed), your apnea could temporarily change (including any snoring you may have).