There are various types of “cups”, such as cups made from bamboo, ceramic, metal, silicone and plastic. Modern cupping is performed using glass cups that are rounded like balls and open on one end.
There are two main categories of cupping performed today:
Dry cupping is a suction-only method. The inside of each cup is heated — typically with an alcohol-soaked cotton ball that is set aflame. The heat sends oxygen out of the cup, creating a vacuum. Some providers use a suction device to remove air from cups. Once placed on your skin, the vacuum force pulls skin up into the cup.
Wet cupping may involve both suction and controlled medicinal bleeding. A needle is used to lightly puncture your skin before, and sometimes after, cupping. Toxins leave the body through the puncture wounds during the cupping procedure.
Your practitioner, your medical condition, and your preferences will help determine what method is used.