Adverse effects of cupping
Often alternative therapies are seen as “benign” and without adverse effects. However, complications can result from cupping. Trauma can be induced from the cupping itself by damaging superficial blood vessels and causing bruising.1,11 Blistering can also occur secondary to the suction effect, and the epidermal and dermal layers of the skin can be separated.1,11 Further, burns and discoloration have also been noted secondary to heat, trauma, and post inflammatory pigmentary changes.1,11 Another risk of cupping is the Koebner phenomenon, which occurs with psoriasis, with new lesions appearing in traumatized skin.12 Other adverse outcomes that have been reported with cupping include reactivation of herpes simplex virus secondary to skin trauma, iron deficiency anemia (secondary to blood loss), panniculitis, infections, and residual marks mistaken for signs of child abuse.1,11
Cupping in aesthetic dermatology
Facial cupping, a distinct practice from body cupping used to treat general dermatology conditions described previously, is also increasing in popularity. This practice is usually conducted in association with a facial or facial acupuncture by an aesthetician or other licensed professional. It can also be performed using at-home kits. The marketing claims for facial cupping cite improved tightening and contouring of facial skin, increased facial microcirculation and collagen synthesis, and enhanced lymphatic flow to aid with facial puffiness or swelling. One supposed mechanism for these benefits is that cupping increases blood flow. Interestingly, there was a 2020 animal study in which photoacoustic imaging of a mouse ear revealed increased temporary blood flow in the cupping microenvironment.13 Currently, however, there is no evidence in the English scientific literature that supports facial cupping. The benefits attributed to facial cupping for aesthetic purposes have emerged only in personal anecdotes. The temporary increase in blood flow may induce inflammation and swelling that adds volume to the face and temporarily diminishes wrinkles. However, this temporary plumpness may be associated with adverse effects, such as local trauma, irritation, bruising, postinflammatory pigmentary alteration, or even herpes reactivation. In my opinion, the possible adverse effects of cupping outweigh any potential benefit, especially given the insufficient evidence supporting the utility of cupping for cosmetic enhancement.
Summary
There is increasing interest among patients to incorporate complementary and alternative medicine – including the ancient tradition of cupping – in managing medical dermatologic conditions. However, current evidence supporting cupping as an effective therapeutic strategy is not strong, with most studies to date appearing to be of poor quality or not sufficiently convincing to displace standard therapies. Our medical strategies for managing chronic dermatologic conditions, particularly inflammatory disorders, continue to improve from both a safety and a proven efficacy standpoint. Therefore, I would not forgo medical management in favor of cupping. While cupping can be used as an adjunct therapy, I would caution patients about possible adverse side effects. In the aesthetic world, cupping is also gaining popularity, but this trend is also not supported by current evidence or studies, at least in the Western literature.
Dr. Goldman is a dermatologist in private practice in Miami and specializes in cosmetic and general dermatology. She practices at Baumann Cosmetic & Research Institute and is also opening a general dermatology practice. Write to her at dermnews@mdedge.com or message her on Instragram @DrChloeGoldman. Dr. Goldman receives compensation to create social media content for Replenix, a skin care company. She has no other disclosures.
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This article was updated 4/25/22.