The discolored skin patches that commonly appear following cupping therapy are the result of the therapeutic suction applied to the skin. This localized negative pressure draws blood into the targeted area, causing small capillaries near the surface of the skin to rupture. The marks observed are essentially bruising, a consequence of blood leaking into the interstitial spaces beneath the skin.
The appearance and intensity of the marks can vary significantly based on several factors, including the degree of suction applied, the duration of the treatment, and individual physiological characteristics such as skin sensitivity, blood circulation, and pre-existing conditions. While the marks may initially seem alarming, they are generally harmless and typically resolve within a few days to a couple of weeks. Historically, these marks have been viewed as a visual indicator of stagnant blood and toxins being drawn out of the body, although this interpretation lacks scientific validation. The therapy is believed to promote healing by increasing blood flow and reducing muscle tension.
