The latest sign that growth in consumer spending, the mainstay of the U.S. economy, is slowing? A nip and tuck in spending on cosmetic surgery.

The slowdown was a hot topic at the meeting of the American Society of Plastic Surgeons in Baltimore this fall. One breast-implant maker sees hints of a slowdown in demand. The number of vision-correction surgeries appears to be falling as well. "This whole mortgage credit crisis is making people think twice," said J. Peter Rubin, a Pittsburgh plastic surgeon. "It's something I've...