Tattoo pain charts: what the research measured, and what it did not

This page has no pain chart on it. Drawing one would repeat the exact thing worth criticizing about the category: a score per body area, printed with the confidence of a measurement and the sourcing of a rumor. What replaces it is the table of what has actually been tested.

What a tattoo pain chart is, and where its numbers come from

A tattoo pain chart is a body map that assigns each area a pain score, and every version of it we read sources that score from opinion rather than from measurement. The formats vary — one to ten by region, or four bands running from low to severe — but the structure is identical, and so is the absence of a study behind it.

Two of the most visible examples say different things about their own numbers. Removery’s chart is explicit that it surveyed experienced artists and enthusiasts and asked them to rank each body part from one to ten, which is a real method honestly named; what it does not publish is how many people answered, how the answers were combined, or how far apart they were. Healthline’s version gives no origin at all for its bands, and the research it does cite addresses pressure pain thresholds in tattooed people rather than pain by location.

None of that is fraud. Aggregated craft experience is worth something, and an artist who has worked a hundred sternums has information no survey collected. It becomes a problem at the moment the experience is printed as a number, because a number invites comparison — a seven against a four — and nothing in the underlying material supports arithmetic at that resolution.

The only study we found that tested pain by body area

One peer-reviewed study has tested tattoo pain against the part of the body being tattooed, and body area came out as the predictor that did not matter. Joanna Witkoś and Magdalena Hartman-Petrycka surveyed 1,092 people in Poland between June 2019 and June 2020 — 863 women and 229 men — asking each for their maximum pain during the session and directly after it on a 0–10 numerical rating scale, then ran the answers through multiple regression against gender, age, BMI, education, body area, session time, bleeding, stress and painkillers taken beforehand. The paper is open access at PubMed Central.

Mean pain came in at 4.35 of 10 during the session, with a standard deviation of 2.60, dropping to 2.07 directly afterward. The spread is the part worth holding onto: a standard deviation of 2.6 on a ten-point scale means the gap between two people getting the same tattoo in the same spot is wider than any gap a chart claims between spots. Around 10 percent of participants, women and men alike, reported no pain at all.

What the same data did predict: time, stress, bleeding, medication

Five variables moved the pain score, and four of them describe the session rather than the site. The table gives the regression output as published, with B as the coefficient — points on the 0–10 scale — and the p-value beside it.

Bleeding during the session sits at 0.052, which is on the line rather than over it, and we are leaving it where the authors left it. The painkiller row is the counterintuitive one: participants who took analgesics beforehand reported 1.42 points more pain, and the authors read that as people with low pain tolerance being the ones who medicate, not as medication making tattoos hurt. Thirty-three participants did it anyway, which is 3 percent — and worth stating carefully, because the paper’s own discussion renders that same figure as “33% of participants” while its Table 1 gives “33 (3.02)”. The table is the data; the discussion is a typo in a peer-reviewed paper.

Body area was not entirely silent. It predicted one outcome — whether pain radiated beyond the tattooed spot, which happened in 83 percent of upper-limb sessions against 72 percent for the lower limb (p = 0.003) and 76 percent for the torso (p = 0.031). Location changed where the sensation went, not how strong it was.

Why “more nerve endings there” is a mechanism nobody measured for tattooing

Nerve density is the reason every chart gives for its ranking, and the one place it has been counted in human skin runs in the opposite direction. Diagnostic neurology measures epidermal nerve fiber density from punch biopsies, and McArthur and colleagues established the reference range across 98 healthy controls: 21.1 fibers per millimeter at the thigh against 13.8 at the distal part of the leg, the thigh higher by about 60 percent in what the paper calls the normal proximal-distal gradient.

Charts put the thigh among the least painful places and the shin and ankle among the most. The only human nerve-density figures we found put 60 percent more epidermal fibers in the thigh. That does not prove shins hurt less — it shows the explanation was borrowed rather than measured.

The caveats matter and cut both ways. That measurement covers two sites, counts small unmyelinated fibers in the epidermis for the purpose of diagnosing neuropathy, and has never been tested against a tattoo needle, which deposits pigment in the dermis below. Nerve endings are not one thing, and the mix of receptor types varies by region in ways a linear density does not capture. Our claim is narrow: the sentence “this area has more nerve endings” appears in charts without a citation, and the nearest thing to a citation does not support it.

The second mechanism charts cite, thin skin over bone, has been measured, and the figures live on our tattoo placement guide rather than here. The conclusion that page reaches is that dermis thickness genuinely differs by site, but by less than it differs between two people — which is the same shape of problem the pain data shows.

What the study cannot settle, and where the charts might still be right

Absence of a significant difference is not proof that no difference exists, and this study has three limits that keep the question open rather than closing it.

The honest summary is narrower than either side would like. Ribs, sternum, hands, feet and skin over bone may well hurt more; the study is too coarse to rule it out, and enough artists say so independently that we would not bet against it. What cannot survive contact with the data is the number — the claim that one area is a nine and another a four, published without a sample, a method, or a spread.

The variables you can change before the session

Four of the five measured predictors are decided before the needle starts, which makes them the only part of this a chart could never have told you.

1. Step 1Book against the clock, not the spotSession time predicted pain during and after, in every model the authors ran. Splitting a long piece across two appointments changes a variable that was measured; moving it from the ribs to the thigh changes one that was not.
2. Step 2Treat stress as an inputSelf-reported stress before the appointment carried a coefficient of 0.45 during the session, the second largest in the table. It is also the variable most under your control on the day, which is why it belongs in planning rather than in a body map.
3. Step 3Do not assume medication loads the dice in your favorThe people who took painkillers beforehand reported more pain, not less, and the studios in the study warned participants about bleeding. That is an association in survey data rather than a finding about drugs, and anything you actually take is a question for a doctor.
4. Step 4Ask the artist about that specific spotA four-region regression cannot resolve the sternum from the flank. Someone who tattoos that area every week can, and their answer is the same kind of evidence the charts are built from, minus the layer that turned it into a score.

That last step is the one to bring to the shop. The tattoo consultation checklist covers the rest of the questions worth asking in the same conversation, and session length is usually the first thing an artist can estimate from your reference.

Planning a piece when the pain number is unknown

Placement should be decided on the consequences that were measured, and pain is not one of them. The choice between a forearm and a rib panel changes how fine a line survives, how the piece ages, and how much of the design people see — all of which outlast the session by decades, while the pain ends the same day.

Design decisions feed the same clock. A lettering piece set in a heavy face takes longer to fill than the same words in a light one, which is visible in the tattoo font generator before anything is booked, and the styles that hold up over time are covered in tattoo styles that age well. If the design is still open, the random tattoo brief names a placement and a size in every brief it generates, which at least turns an abstract fear into a concrete appointment length.

What we would not do is publish a chart. The measurement that exists says body area did not predict pain intensity, the mechanism usually offered points the other way, and the honest version of this page is a table of p-values and a list of the things that did move the number.