Cupping went mainstream during the 2016 Olympics when Michael Phelps showed up with constellations of round purple marks on his shoulders. Since then it has become both more common in clinical practice and more wrapped in marketing that does not always match the evidence. We use cupping in almost every session at our Eugene clinic, and we include it free as part of the standard 60-minute massage. Here is what cupping actually does, what the research supports and does not, why the marks are not bruises, and why we think it is one of the most useful tools in modern soft-tissue work.

What Cupping Therapy Is

Cupping therapy is a technique that uses cups, traditionally made of glass and now most often made of silicone or plastic, to create suction on the skin and the tissue underneath. The cups can be left in place (static cupping) or moved across the tissue with oil as a glide medium (gliding or dynamic cupping). The result is a mechanical force that is the opposite of what hands deliver in massage. Where massage pushes tissue together with positive pressure, cupping pulls tissue apart with negative pressure.

That distinction matters because some clinical effects require decompression rather than compression. Dense fascial layers that have adhered together respond differently to being pulled apart than to being pressed together. Stagnant fluid in chronically tight tissue moves more efficiently when the tissue is decompressed. The dense areas of the body that resist deep pressure (upper trap, deep glute, soleus) respond particularly well to the alternative input that cupping provides.

The Mechanism: What Is Actually Happening Underneath the Cup

Mechanical Effects on Fascia

The most reliable and well-documented effect of cupping is on the fascial system. Fascia is the connective tissue web that wraps every muscle and connects throughout the body, and it has a tendency to adhere to itself and to the underlying muscle when areas are chronically restricted. Cupping creates a sustained pull that separates these adhesions in ways that are mechanically difficult to achieve with compression alone. Imaging studies before and after cupping show measurable changes in the appearance of fascial layers in the worked areas.

Increased Local Blood Flow

The suction from cupping draws blood into the tissue beneath the cup, producing a visible reddening that begins almost immediately. The blood flow increase is significant and lasts longer than the equivalent effect from massage alone. Increased blood flow delivers oxygen and nutrients to the worked area and removes metabolic waste that has accumulated in chronically tight tissue.

Lymphatic Mobilization

The lymphatic system, which removes waste products and excess fluid from tissue, runs through the superficial fascia and is highly responsive to mechanical input. Cupping mobilizes the lymphatic system in the cupped area, which is one reason cupping marks fade so quickly compared to actual bruising.

Neurological Effects

Like deep tissue massage, cupping stimulates mechanoreceptors in the skin and deeper tissue. The signals travel up the nervous system and produce local pain reduction (through gate control mechanisms) and broader nervous system regulation effects (through vagal pathways). Many clients report that cupping feels calming in a way that intense deep tissue work does not, which is consistent with this nervous system mechanism.

What the Research Actually Shows

Cupping has a more variable evidence base than some practitioners suggest. Honest summary:

The strongest evidence is for musculoskeletal pain and myofascial pain syndrome. Multiple systematic reviews have shown low to moderate evidence that cupping reduces pain ratings in chronic neck pain, low back pain, and shoulder pain, with effect sizes comparable to other manual therapies. The Cleveland Clinic and StatPearls both consider cupping reasonable for these applications.

The evidence for non-musculoskeletal applications (asthma, hypertension, dermatologic conditions, weight loss, and the dozens of other claims found in marketing copy) is much weaker. We do not make those claims at our Eugene clinic.

The placebo effect in cupping research is meaningful. Some studies find cupping no more effective than sham cupping (cups applied with very light suction). This is a real critique. It is also true of many manual therapies including some forms of physical therapy, and it does not erase the clinical utility for clients who consistently report better outcomes when cupping is part of the session.

The honest position: cupping is a useful tool for musculoskeletal pain and tissue restriction in dense areas. It is not a cure-all, and we are skeptical of clinics that present it as one.

Try Cupping as Part of a Full Session

Every $150 60-minute massage at our Eugene clinic includes cupping at no additional charge alongside deep tissue, myofascial release, and hot stones.

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The Marks: What They Are and What They Are Not

The visible marks after cupping are the most common question new clients ask about, and the answer is usually surprising. The marks are not bruises.

A bruise (medically, an ecchymosis) is caused by blunt-force trauma that ruptures small blood vessels and allows blood to leak into the surrounding tissue. Bruises are tender to the touch, swell slightly, follow a predictable color progression as they heal (purple to green to yellow), and take 1 to 2 weeks to clear.

Cupping marks (called sha in traditional Chinese medicine terminology, or petechiae in Western clinical terms) are caused by sustained negative pressure that draws stagnant fluid, metabolic waste, and a small amount of blood content from deeper tissue layers into the more superficial layers. The marks are not painful to touch, do not swell, do not follow the bruise color progression, and typically clear in 3 to 10 days.

A useful clinical observation: the color and density of the marks roughly correlates with how much tissue stasis was present in that area before cupping. Dark purple marks suggest dense underlying stagnation. Lighter pink marks suggest cleaner tissue. Many clients find that subsequent cupping sessions on the same area produce progressively lighter marks as the tissue clears.

Where Cupping Is Most Useful

In our clinical experience over thousands of sessions, cupping pulls its weight most reliably in a few specific areas.

Upper trapezius and levator scapulae. The dense tissue in this region resists deep pressure and often requires uncomfortable amounts of force to reach the deeper layers. Cupping reaches those layers without the discomfort.

Deep glute and piriformis. The piriformis sits deep in the buttock, underneath substantial overlying tissue. Cupping pulls the surface tissue out of the way and provides more access than direct pressure can.

Lumbar paraspinals. The deep muscles alongside the lumbar spine are dense and often chronically tight. Gliding cupping along the paraspinals is one of the most consistently effective interventions we provide for chronic low back pain.

Soleus and lower leg. The deep calf is hard to reach effectively with direct pressure. Cupping on the soleus is often the highest-value intervention we provide for plantar fasciitis and Achilles tendinopathy.

Iliotibial band region. The IT band itself does not respond well to direct work, but cupping the surrounding tissue often produces meaningful changes in the hip and knee patterns associated with IT band pain.

When Cupping Is Not Appropriate

Cupping is contraindicated or requires caution in a few situations. We screen for these before applying cups:

How We Use Cupping at Movement Improvement

Cupping is included in every $150 60-minute session at our Eugene clinic at no additional charge. We do not run an add-on menu where cupping costs extra. The decision about whether and where to use cupping in a session is based on what your tissue presents that day, not on what the receipt says.

For most sessions, we incorporate 10 to 20 minutes of cupping at strategic moments. Often after warming up the area with broader Swedish-style work and some focused deep tissue, before integrating with myofascial release and finishing movement. Sometimes cupping is the primary intervention. Sometimes it is a small piece of a session focused on something else. The mix matters more than any single tool.

Our cupping therapy service page covers our broader approach and the conditions cupping is most commonly used for. For the related deep tissue context, see the deep tissue massage article. For specific applications, cupping shows up prominently in our work with neck and shoulder pain, plantar fasciitis, and sciatica.

Reach the Tissue Direct Pressure Cannot

For dense areas where hands cannot get the depth, the cup can.

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Frequently Asked Questions

Are the marks from cupping bruises?

No. Bruises are caused by blunt-force trauma that ruptures blood vessels. Cupping marks (called sha or petechiae in clinical terms) are caused by sustained suction that pulls stagnant fluid and metabolic waste out of deeper tissue layers into the more superficial layers. The color of the mark roughly correlates with how much tissue stasis was present in that area. Dark purple marks indicate denser stasis, lighter pink marks indicate less. The marks are not painful to touch, do not feel like bruises, and typically clear within 3 to 10 days as the body reabsorbs the material that was drawn up. Subsequent cupping sessions on the same area usually produce lighter marks as the tissue clears.

What does cupping actually do?

Cupping creates negative pressure (suction) on the tissue underneath the cup, in contrast to massage which creates positive pressure. That mechanical difference matters. Negative pressure separates layers of fascia and muscle that have become adhered to each other, increases local blood flow significantly more than direct pressure can, mobilizes the lymphatic system, and stimulates mechanoreceptors that send signals up to the nervous system to reduce local pain perception. For dense tissue areas like the upper trapezius, the deep glute, and the soleus, cupping reaches what hands cannot. The evidence base for cupping is mixed in the published literature, with the strongest support for musculoskeletal pain and myofascial pain syndrome.

Does cupping hurt?

Most clients describe cupping as an unusual but not painful sensation. The cup creates a pulling feeling rather than the pressing feeling of massage, and it can feel intense in areas that are particularly congested, but it does not produce the sharp pain that aggressive deep tissue work can. We adjust suction intensity throughout the session based on what the tissue is communicating back. Some clients find cupping more comfortable than deep tissue work on dense areas like the upper traps, because the cup distributes load over a larger surface area than a thumb or elbow.

What is the difference between dry cupping and wet cupping?

Dry cupping uses suction alone, with the cups applied directly to clean, oiled skin. Wet cupping (called hijama in traditional medicine) involves making small punctures in the skin before applying the cups so that a small amount of blood is drawn into the cup along with the tissue stasis. At our Eugene clinic we use dry cupping exclusively. Wet cupping is a different scope of practice that we do not perform. The clinical effect we are after, which is fascial decompression and increased blood flow, is fully achievable with dry cupping.

Should I avoid working out after cupping?

Light movement is fine and often helpful. Walking, gentle yoga, easy mobility work are all reasonable the same day. Heavy training (intense strength work, heavy intervals, hard climbing, long runs at race pace) is best postponed for 24 to 48 hours after a substantial cupping session, especially if cupping was used on the muscles you would be training. Cupping leaves the tissue temporarily in a more permeable, more circulated state, which is great for recovery but not the right baseline for a maximum effort. We talk through timing at the end of each session based on what we worked.