A woman in her forties went to a plastic surgeon for a facelift.

The surgeon told her about a new procedure called "The Knob,"
where a small knob is placed at the top of the woman's head
and can be turned to lift the skin on her face.

Over the course of the years, the woman tightened the knob, and
the effects were wonderful, the woman remained young looking
and vibrant.

After fifteen years, the woman returned to the surgeon with two
Problems. "All these years, everything has been working just fine.
I've had to turn the knob many times and I've always loved the
results. But now I've developed two annoying problems:

First, I have these terrible bags under my eyes and the knob won't
get rid of them."

The doctor looked at her closely and said, "Those aren't bags, those
are your breasts."

I don't get it...what was her second problem?