Does Cupping Hurt After the Session?

Mild soreness and skin tenderness after a cupping session are common, and for most people, the discomfort peaks within the first day and fades within about three days. The sensation is often compared to a deep-tissue bruise, which makes sense: the suction literally ruptures tiny blood vessels beneath the skin. How much it hurts afterward depends largely on the pressure used, where the cups were placed, and the skill of the practitioner. The good news is that research consistently characterizes post-cupping side effects as minor, though there are situations where things can go wrong.

What Causes the Soreness

The suction from a cup creates negative pressure against your skin and the tissue underneath it. That pressure stretches the skin, pulls the underlying tissue upward, and forces the small blood vessels in the area to dilate. If the suction is strong enough or held long enough, those capillaries rupture, and blood leaks into the surrounding tissue. This is what produces the characteristic round marks, which are technically called ecchymosis, the same process that creates a bruise when you bump into a table edge.¹

That bruise-like injury is also what generates the post-session tenderness. When red blood cells escape into tissue where they do not belong, your immune system responds. Specialized cells called macrophages move in to clean up the leaked blood. During that cleanup, an enzyme is produced that breaks down the hemoglobin from those escaped red cells into several byproducts, including biliverdin and bilirubin, which is why cupping marks often shift in color from dark red or purple to greenish-yellow over the following days, just like an ordinary bruise.² The soreness tracks this healing cycle. As the body clears the debris and the inflammatory response winds down, the tenderness fades.

How Pressure Changes the Experience

Not all cupping sessions leave you equally sore. The single biggest variable is the suction pressure. A study that monitored adverse effects from dry cupping on the neck found that people treated at higher pressure levels reported more symptoms and dealt with them for longer. During the session itself, participants in both the higher and lower pressure groups reported localized pain, along with stinging and radiating sensations. At the 24-hour mark, bruising persisted in the higher-pressure group. And at 72 hours, adverse effects like lingering bruising and pain remained primarily in that same high-pressure group, while the lower-pressure group had largely recovered.³

The takeaway is straightforward: stronger suction means more capillary damage, more bruising, and a longer window of post-session soreness. If you are new to cupping or have sensitive skin, a practitioner who starts with lighter suction and shorter hold times will generally leave you with less discomfort afterward. Some people barely feel anything the next day with gentle cups; others who seek out aggressive sessions can expect tenderness that takes several days to clear. The “no pain, no gain” mindset that some practitioners encourage around cupping marks is not well supported. Research on photoacoustic imaging of cupped tissue confirms that even moderate pressures cause enough capillary rupture to trigger the desired tissue response, so deeper marks do not necessarily mean a better outcome.²

Dry Cupping Versus Wet Cupping

Dry cupping uses suction alone. Wet cupping adds a second step: after removing the cups, the practitioner makes small incisions or punctures in the skin and reapplies the cups to draw out a small amount of blood. As you might expect, wet cupping tends to produce more post-session discomfort. The incisions themselves sting, and the combination of suction-induced bruising plus open cuts means the area can feel raw for a day or two. Still, reviews of both methods describe the side effects as not severe, generally limited to the discomfort of the cupped area and any skin-level soreness at the incision sites.⁴

With wet cupping, there is also a slightly higher risk of infection if equipment is not sterile or aftercare is neglected. The soreness itself, though, follows the same basic pattern as dry cupping: peaks within 24 hours, gradually resolves. Most people describe the incision-related discomfort as similar to a scratch rather than a deep wound.

When Soreness Turns Into Something More Serious

For the vast majority of people, post-cupping soreness is a nuisance, not a problem. But there are documented cases where things go further. One case report describes a previously healthy 55-year-old man who showed up to an emergency department with painful tingling across his back after a cupping session. Examination revealed multiple blisters inside circular marks of varying sizes, along with redness, petechiae, and deep bruising.⁵ Blisters like these, called bullae, happen when suction is too strong or held too long, essentially pulling the upper layers of skin apart from the tissue beneath. They are painful and can take a week or more to heal.

Burns are another risk, specifically with fire cupping, where a flame heats the air inside a glass cup before it is placed on the skin. If the rim gets too hot or the practitioner is careless, you can end up with first- or second-degree burns that hurt far more than typical cupping soreness. A systematic review of adverse events from cupping therapy in studies conducted in Korea found that while various side effects were reported, they were rare, and most were avoidable when treatment was provided by trained personnel following safety guidelines.⁶

The practitioner’s experience matters more than most people realize. Someone who understands tissue response will adjust pressure, duration, and cup size based on the body area and the individual’s skin type. An inexperienced practitioner may default to aggressive settings because they believe darker marks indicate a more effective treatment, which is a common but unsupported assumption.

Why Cupping Can Ease Pain Even Though It Causes Soreness

One of the genuinely interesting things about cupping is that it can simultaneously cause bruise-like soreness and reduce other types of pain. This seems contradictory, but the two phenomena involve different mechanisms.

A randomized pilot study on patients with chronic neck pain found that after a series of cupping sessions, participants in the cupping group had significantly higher pressure-pain thresholds in the treated areas compared to a waitlisted control group. In practical terms, they could tolerate more pressure on those painful spots before it registered as pain.⁷ A separate study measuring pain thresholds immediately after cupping found they rose slightly right after treatment, though the effect did not last past about five hours.⁸

The pain-relief effect has also been studied in the context of exercise-induced muscle soreness. When researchers used cupping at different suction levels on people experiencing delayed-onset muscle soreness after a workout, all the cupping groups reported substantially less muscle pain than the untreated control group at the 24-hour mark. The control group’s average pain score was about 6 out of 10, while the strongest-suction cupping group scored closer to 1.5 out of 10.⁹ The effect was pressure-dependent: the higher the suction, the greater the pain relief for the underlying muscle soreness.

So the post-session tenderness from cupping is the tissue’s local reaction to being suctioned and bruised, while the pain relief from cupping acts on different pain pathways, possibly through increased blood flow, changes in local inflammation, or nervous system modulation. You can experience both at the same time: a cupped area on your back might feel tender to the touch while the deep ache that originally brought you to the practitioner feels noticeably better.

What the Marks Signal About Your Soreness

Cupping marks are often the most alarming part of the experience for people who have never tried it. The dark circles look dramatic, and they draw attention. Research on how people perceive cupping marks confirms this: images of backs with cupping marks were rated significantly more unpleasant than images of unmarked backs, and eye-tracking showed that viewers fixated on the marks for a disproportionate amount of time.¹⁰ The visual impact of the marks can make people assume the soreness must be severe, both the person who received cupping and those around them.

In reality, the correlation between mark darkness and pain intensity is loose. Very dark marks do indicate more capillary rupture, which generally means more tenderness. But the visual drama of the marks often outpaces the actual discomfort. People frequently report that their marks look “way worse than they feel.” The color is simply hemoglobin being broken down in the tissue, the same palette you see in any fading bruise. If you have had a nasty bruise on your shin from walking into something, you have a reasonable frame of reference for what the tender spots from cupping feel like, and you know that the bruise looks alarming long after it has stopped hurting.

The study on visual perception also found something worth noting: people with higher empathy scores rated cupping mark images as more unpleasant.¹⁰ If a friend or partner sees your marks and winces, their reaction may say more about their empathic response than about your actual pain level.

Practical Ways to Manage Post-Session Discomfort

Since most post-cupping soreness is essentially bruise tenderness, the management strategies are familiar. Staying hydrated after a session is standard advice, though the evidence base for this specific recommendation in cupping is more traditional than clinical. Avoiding very hot showers on the cupped areas for the first few hours can prevent additional vasodilation that might intensify redness or swelling. Gentle movement tends to be more comfortable than staying completely still, since stiffness can make the tender areas feel worse.

For people who bruise easily, either from genetics, medications like blood thinners, or conditions that affect clotting, post-cupping soreness tends to be more pronounced and longer-lasting. If you take aspirin, warfarin, or similar medications, that is worth mentioning to your practitioner beforehand. The same goes for anyone with a skin condition that makes the skin more fragile or reactive. A good practitioner will adjust the pressure accordingly rather than applying a one-size-fits-all approach.

If your soreness has not begun to improve after three or four days, or if blisters form, or if you see signs of infection around wet-cupping incision sites, such as increasing redness, warmth, or discharge, those warrant medical attention. The vast majority of sessions end with nothing more than mild tenderness and marks that fade over the following week.

Cupping Soreness in Athletes

Cupping gained mainstream visibility when Olympic swimmers appeared at competitions covered in circular marks. Athletes tend to use cupping for recovery, targeting muscles that are tight or sore from training. A systematic review of randomized controlled trials on cupping in athletes found that the therapy was generally reported as beneficial for perceptions of pain and disability, with improvements in range of motion and reductions in markers of muscle damage compared to untreated control groups. However, the review also noted that most of the included trials had unclear or high risk of bias, and none of them actually reported on safety outcomes.¹¹

That gap is telling. Athletes are a population that pushes cupping to relatively aggressive levels, often seeking deep marks on large muscle groups and returning for frequent sessions. The absence of safety reporting in the athletic cupping literature means we have less data on post-session soreness patterns in this group than we should. Anecdotally, athletes tend to describe the post-session feeling as “a good sore,” analogous to the way a deep sports massage can leave you tender but feeling loosened up. Whether that reflects a genuine physiological benefit or a placebo-expectation effect is still an open question, especially given the bias issues flagged in the review.

Athletes also tend to cup over already-sore muscles, which creates a layered experience: the underlying training soreness mixes with the cupping-induced tenderness, and it can be hard to tell which is which. The research on exercise-induced muscle soreness described earlier suggests the cupping may actively reduce the training-related pain even while adding its own superficial tenderness, but separating those two sensations in real-world use is tricky.

Factors That Make Some People More Sore Than Others

Even under identical cupping conditions, two people can walk away with very different post-session experiences. Skin thickness varies across the body and between individuals. Thinner skin, like on the upper back near the spine, tends to bruise more readily and feel more tender afterward than thicker-skinned areas like the mid-back or thighs. Older adults generally have thinner, more fragile skin and may experience more pronounced marks and soreness from the same suction level that a younger person barely notices.

Hydration status, recent sun exposure, and whether you had a hot shower right before the session can all affect how reactive your skin is. Dehydrated skin seems to mark more easily, though this is based more on practitioner observation than controlled study. People on anti-inflammatory medications may bruise differently, and those with connective tissue conditions can have exaggerated responses to the suction.

Location on the body also matters beyond just skin thickness. The fleshy part of the upper trapezius (the muscle between your neck and shoulder) is one of the most commonly cupped areas and also one where people report the most post-session tenderness, likely because the muscle is already tight and sensitized in many people before cupping even begins. In contrast, cups placed on the broad flat muscles of the lower back often produce dramatic-looking marks but relatively mild soreness.