cupping

What exactly are those circular bruises on so many athletes’ bodies?
While you may know cupping for the bruises it leaves, new methods involve movement while cups are applied. Called myofascial decompression, this treatment combines Eastern and Western knowledge.
You may have a seen a friend after a visit to the acupuncturist and there were big red circular bruises on his/her back. Those bruises are from a treatment known as "cupping."
Today, myofascial decompression, better known as cupping, has made a return to western society, especially in the physical therapy and athletic training room settings. What is it and does it work?