Many elderly women show up in the emergency room with peripheral edema or
swollen feet due to congestive heart failure (which is a chronic condition). When I was pregnant, I had ONE foot swell terribly. That was a vein issue in my case. And I had pregnancy hypertension and had pitting edema overall. (good times . . . loved it so much I did it twice, ha ha). Another common reason for this kind of edema is kidney issues. And liver issues. The list goes on.