I see some women with a piece of tape over the navel on the stomach is liposuction being perform from that Pacific spot. Because most doctors have 2 marking below tummy area
If the pictures you were looking at our of liposuction then yes it is likely one small access point that can be hidden in the top of the bellybutton. If the pictures you were looking at are after a abdominoplasty then it may just be addressing to keep the clothing dry.