Yes, it can. In such case, the fat must be removed very elaborately and evenly, which is why the treatment should be carried out skillfully and delicately by an experienced specialist after accurate and precise diagnosis and understanding of the fat in each part.

Yes, it can. To use it for graft, however, the fat should be extracted manually from the beginning so that the fat cells are not destroyed, suffering little damage. 

Abdominal plasty resects the droopy ab area and stitches it. The navel position should be adjusted through surgery as resection is made as much as the skin droops.

Liposuction can be effective when there is a lot of fat, but extracting fat cannot make droopy skin elastic. In this case, a slender waistline can be made if abdominal plasty is performed as well.

The scar will not show if you wear bikini underwear. In addition, incisional wounds become thinner over time, leaving little scarring.