Many patients experience looseness of the skin or fascia (the deep layer lining the muscles) after childbirth. There is an unfortunate push to market lasers or radiofrequency devices to tighten large amounts of post-pregnancy skin. These devices are useful to attain small degrees of tightening, i.e. in the face. These devices will unfortunately not significantly tighten the abdominal skin or the loose fascia. The reason for this limitation lies in the biology of skin. Too much energy applied to the skin causes death of the skin due to coagulation of the vessels of the subdermal plexus, the area below the skin. That is why by nature the energy of these devices must be very limited. Many treatments cause an improvement in the appearance of the skin on a temporary basis. This is usualy due to the heat of the treatments causing swelling in the tissues, or evaporation of water on a temporary basis, obscuring temporarily the looseness of the skin. If there is extra skin that needs to be removed, or fascia that needs to be tightened, there an array of procedures available. Liposculpture alone can reduce fat but does not tighten skin, and does not tighten fascia. From the results I have seen, and I would include laser liposuction techniques in this category, I've yet to see a study showing that skin tightens on a permanent basis from energy applied to the very delicate subdermal plexus (same biologic limitations as above). Often laser energy applied to the skin (above or below the surface) results in rapid evaporation (vaporization) of water, temporarily contracting the skin. This should not be confused with long term meaningful tightening. For women with a small amount of extra skin, a mini tuck may be just the right thing. This is especially popular with women who have already had a C-section and have noted irregularities in their incisions. For women who have only a small amount of skin to be removed but need the deep layer (fascia) tightened, there is the hybrid abdominoplasty (hybrid tummy tuck) or endoscopic tummy tuck. For women requiring a large amount of skin and fat removed, a full tummy tuck may be appropriate. So don't be fooled by a lunchtime device administered by an asthetician promising to tighten the skin after childbirth.