You notice it on a Thursday night, unscrewing a jar lid. A dull ache along the top of your forearm, a couple of inches below the elbow. It was there last week too, now that you think about it, mostly after the days with three deep tissue clients in a row. Your coffee mug feels heavier than it should in the morning, then the feeling fades once you warm up, so you keep going.
That pattern is common enough that most therapists shrug it off. It’s worth paying attention to anyway, because forearm pain rarely shows up out of nowhere and it rarely leaves on its own if nothing changes.
Why forearms take so much of the load
In a 2022 survey of 1,103 Ontario massage therapists, 85% reported work-related pain somewhere in their body, and the hand and wrist was the most common site at 65.5%. More than half (54.6%) said they were working in pain, and 30.5% had considered changing professions or already had. An earlier national survey of 502 Canadian RMTs found the same thing: the wrist and thumb topped the list, ahead of the low back, neck and shoulders.
The forearm is where a lot of that hand and wrist work actually happens. The muscles that grip, that stabilise your wrist when you press through the heel of your hand, and that hold your fingers firm for specific work all sit between your elbow and wrist. In a typical session they rarely get a full rest. Three habits make it worse:
- Gripping while you work. Kneading, petrissage and holding a limb for a stretch all ask for sustained grip.
- Pressing through a bent-back wrist. Leaning into the heel of your hand with the wrist cocked back loads the forearm extensors for as long as you hold the pressure.
- Stacking heavy days. Back-to-back deep pressure sessions give the tissue no time to recover before the next round.
None of this means you’re doing something wrong. It’s the normal cost of the work, and it accumulates.
Early signs worth noticing
The surveys above describe most work-related pain as gradual. That’s the useful part, because it means there’s usually a window where small changes make a real difference. Signals worth taking seriously:
- An ache that appears after work and is still there the next morning
- Stiffness when you first grip something in the morning
- A grip that feels weaker, like dropping things or struggling with jar lids
- A tender spot near the outside or inside of the elbow
- Any numbness, tingling or pain that wakes you at night
We can’t tell you what any of these means for your arm, and you shouldn’t trust an article that tries. If symptoms last more than a few days, keep coming back, or include numbness, tingling or weakness, book in with a physiotherapist or your doctor. In our experience, therapists who get assessed early lose less time from work than the ones who wait for it to go away.
Relief that fits between clients
Unload the forearms completely between sessions. Once your hands are washed, take 60 seconds: open your hands wide and make loose fists ten times, shake your hands out, then do slow, gentle wrist stretches in both directions (palm facing away, then palm facing you) without forcing the end range. Let your arms hang by your sides for a few breaths. The aim is to give the gripping muscles a real rest instead of carrying tension into the next client.
Self-massage, gently. You know how to do this better than most people. Use the opposite forearm or a soft ball against the table edge to work slowly along the forearm extensors and flexors. Keep pressure moderate. A sore arm doesn’t need the deep pressure you would give a client.
Reorder your day. If three deep tissue clients are booked back to back, move one if you can. Alternate heavier and lighter sessions. A study of massage therapists’ self-care habits found that therapists who named time as a barrier put fewer injury prevention practices into place, even though they wanted to. Recovery has to be built into the schedule, or it gets squeezed out.
Spread the work beyond your hands. Switching some pressure to your forearm, elbow or a braced fist takes load off the grip muscles. Our guide to protecting your hands and thumbs covers those substitutions in detail, and the ergonomics guide covers table height and stance, which change how much your wrists have to bend in the first place.
Hivemanager.io lets you control which times clients can book online, so the gap your forearms need stays on your calendar.
Build strength so it stays away
Rest settles a sore arm. Strength helps keep it from coming back. In a randomised trial with slaughterhouse workers, people with chronic shoulder, elbow, forearm or hand pain from repetitive, forceful manual work did 10 minutes of resistance training three times a week for 10 weeks. Their pain dropped more than in the group that got ergonomic training and education instead.
Massage therapy isn’t slaughterhouse work, but the pattern of repetitive, forceful hand use is similar enough to take the finding seriously. Simple options include wrist curls and reverse wrist curls with a light dumbbell, squeezing a soft grip ball, and opening your fingers against a rubber band. Start light, go slowly, and stop if it makes the pain worse. If your arm is already sore, get a physiotherapist to set the starting load. Our strength and mobility routine for RMTs puts these into a weekly plan along with shoulders, core and hips.
Forearm pain is information
It’s easy to treat a sore forearm as a personal failing, a sign you’re not tough enough for deep work. Look at it as feedback about workload instead. The Ontario survey found almost a third of therapists had thought about leaving the profession or already had, with work-related pain behind it.
The therapists we know who have lasted 20 years in this work noticed early and changed how their week was built. They count recovery as part of the job. If the ache is already wearing on you beyond your arms, our piece on avoiding burnout as a massage therapist is a good next read.