Ask someone with long-term pain where it hurts and you get the loudest site, today. The knee that has been bad since Tuesday gets named. The shoulder that flared twice last month, the ache under the heel every morning and the week the pain moved into both hands do not, because none of them is the thing hurting at the moment of the question.
That is not a memory failure you can fix by trying harder. It is how recall works under pain, and it is why location is worth recording on the day, with a tap, rather than reconstructing it in a waiting room.
Two things "pain locator app" can mean
Search for one and you find two very different kinds of app under the same words.
A symptom checker. You point at the painful area and the app lists conditions that sometimes cause pain there. It feels useful, and it is the kind of app most people imagine. The problem is that the same spot hurts for many unrelated reasons, and the list you get back cannot examine you, cannot see your history and cannot tell a common cause from a rare one in your particular case. At best it gives you vocabulary. At worst it gives you a label that sticks.
A body-map pain diary. You tap where it hurts on the day, the app keeps it with the date and the pain level, and over weeks the entries build into a pattern: which areas come back, which ones travel, whether the pain is staying put or spreading. It answers no questions on its own. It is the raw material a clinician uses to answer them.
For an appointment, the second kind is the one that changes what happens. A clinician can do the reasoning. What they cannot do is recover three months of locations you did not write down.
Why location is the part that goes missing
- The loudest site wins. Pain in four places becomes pain in one place when you answer from memory, and the other three quietly drop out of your history.
- Moving pain flattens. Pain that sat in the lower back in July and in the hip in September gets reported as "back and hip", which hides the fact that it moved.
- Side and surface blur. Left or right, front or back, the joint or the muscle beside it: details that are obvious on the day and genuinely hard to recall a month later.
- Widespread days get undercounted. On a day when everything hurts, people write "all over" or nothing at all. For some conditions, how many areas are involved is itself part of the picture. Fibromyalgia is one example: the assessment asks which regions of the body have been painful over the past week.
What a useful location record holds
Not much, and that is the point. A location entry has to be quick enough to do on a bad day, or it will not exist on the days that matter most.
Every involved area, not just the worst
Tap everything that hurt, including the site that was only a four. The minor sites are often the ones that explain the major one later.
Front or back, left or right
Front of the shoulder and back of the shoulder are different complaints. So are the front and back of the thigh. A map with separate front and back views lets you say which one without finding the words.
The finer spot, when it matters
Some pain lives in places too small for a body outline: a single finger joint, the base of the thumb, the heel, the jaw, behind the eye. When that is where it is, record it at that level. "Hand" and "the middle knuckle of the right index finger" lead to different conversations.
Whether it travels
If the pain runs somewhere, down the back of a leg or into a hand, note where it starts and where it stops. A single line is enough.
The pain level beside it
Location without intensity cannot show that a site is getting worse. One number per entry, next to the areas, is what turns a list of places into a trend.
What the clinician should see
A list of body parts with dates is accurate and slow to read. A body outline shaded by how bad each area got is accurate and fast: a clinician can take in a month of locations in the time it takes to turn the page, and then ask about the area that stands out.
The most useful version shows front and back separately, shades each area by the worst pain recorded there in the period, and tells a site that sits at a level every day apart from one that spiked once. Bring the dates too, so a pattern can be checked against what else was happening.
If you want to prepare the rest of the appointment as well, the pain management appointment prep sheet covers what to bring alongside the record, and how to describe your pain to a doctor covers the words for what each site feels like.
Where Pain Journal fits, and we built it so we will say so plainly
Pain Journal is our own app, and it is the diary kind of pain locator, not the checker kind. It will never tell you what your pain is.
Each entry starts with a body figure. You switch between the front and the back and tap every area that hurt, and on days that match the last one there is a one-tap "same as last time". For the spots a body outline cannot show, a searchable list holds the finer locations: individual finger joints, the thumb base, the heel and ball of the foot, the jaw, the temple, behind the eye, and "all over" for the days when that is the honest answer. Then a pain level, and optionally the pain type, what set it off, sleep, medications and a note.
The entries become a PDF for the appointment. The free report covers the last 7 days, or your last logged week if the last 7 days are empty, and it includes front and back body figures shaded by the worst pain recorded at each site, next to the week's summary and your day-by-day entries. No credits and no fee per export. Premium adds 30-day, 90-day and custom windows and a per-area table with typical and worst pain for each area. Everything stays on your device, there is no account, and it works offline.
If you would rather use paper, the free printable pain diary has a body map to mark and asks for the same things.
Common questions
What is a pain locator app?
The phrase covers two different kinds of app. A symptom checker asks you to point at where it hurts and
then suggests possible causes. A body-map pain diary asks you to tap where it hurts on the day and keeps
that as a dated record, so the pattern across weeks can be shown to a clinician. Pain Journal is the second
kind.
Can an app tell me what is causing my pain from where it hurts?
Not reliably. The same spot can hurt for very different reasons, and working out which one applies takes
an examination, your history and sometimes tests. What an app can do well is keep an accurate record of
where it hurt and when, which is exactly the information a clinician needs to start that work.
Should I mark every place that hurts, or only the worst one?
Every place. When someone asks where it hurts you name the loudest site and the others go unmentioned, and
over months that habit turns pain in several areas into pain in one area on paper. Tapping every involved
area takes a few extra seconds and keeps the real picture.
Does the free Pain Journal report include the body map?
Yes. The free PDF covers the last 7 days, or your last logged week if the last 7 days are empty, and it
includes front and back body figures shaded by the worst pain recorded at each site, alongside the week's
summary and your day-by-day entries. Premium adds 30-day, 90-day and custom windows and a per-area table
with typical and worst pain for each area.
Does it matter whether I mark the front or the back?
Often, yes. Front of the shoulder and back of the shoulder, front of the thigh and back of the thigh, are
different complaints to a clinician. A body map with separate front and back views lets you say which one
without having to describe it in words.
This guide is about keeping a record, not about treatment or diagnosis. Pain Journal is a personal pain diary and not a medical device, and nothing here is medical advice. What your pattern means, and what to do about it, belongs with your own clinician.
