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If you've had a physio appointment at a clinic in the last few years, there's a decent chance someone has waved a small handheld device over a sore spot on your body and told you it was a laser. Not the kind that cuts things. The kind that, according to the physiotherapist holding it, is meant to speed up healing and settle down pain without you feeling much of anything at all. Maybe you were told it would help your tennis elbow, or the tendon in your knee that's been niggling for months, or a stubborn case of plantar fasciitis that's outlasted every stretch and shoe insert you've tried. Maybe nobody explained much at all, and you were just left wondering whether you'd actually agreed to something useful or something that sounded impressive but did very little. It's a fair reaction to be a bit sceptical. "Laser" sounds like something out of a sci-fi film, and a treatment that involves no needles, no pressure and no real sensation can feel like it shouldn't be doing much of anything.
The honest answer is that laser therapy sits somewhere between "genuinely useful tool" and "not a magic fix," and which end of that spectrum it lands on depends heavily on what you're using it for. This article goes through what laser therapy actually is, how it's thought to work, what the research does and doesn't support, and what it looks like in practice at Wellcare Physio's laser therapy service in Truganina and Tarneit. No exaggerated claims, no pretending it fixes everything. Just a straightforward look at a treatment that gets used a lot more than most patients realise.
The version used in physiotherapy clinics is properly called low-level laser therapy, or LLLT, and it's also known as cold laser therapy or photobiomodulation therapy. All three names refer to the same idea: using a specific wavelength of light, delivered through a small handheld probe, directly onto or near an area of injured or painful tissue.
The "cold" part of cold laser therapy is the bit worth understanding first, because it's what separates this from the image most people have of lasers. Surgical and industrial lasers work by generating heat and burning or cutting tissue. Therapeutic lasers used in physio don't do that. They operate at a much lower power output, and the light itself doesn't produce a noticeable heating effect in the tissue. You won't feel burning, stinging, or really much sensation at all beyond maybe a faint warmth on the skin in some cases. That's the whole point: the effect isn't thermal, it's photochemical.
The light itself usually falls somewhere in the red to near-infrared range, roughly 600 to 905 nanometres, which is the band of wavelengths that can penetrate through skin and into muscle, tendon, and other soft tissue without being absorbed or scattered before it gets there. Different devices and different protocols use slightly different wavelengths and doses depending on how deep the target tissue sits and what's being treated.
Laser therapy isn't a niche treatment reserved for elite athletes or unusual injuries. It comes up constantly in an outer-western Melbourne clinic simply because of the mix of people walking through the door. Truganina and Tarneit are suburbs full of tradespeople doing repetitive, load-bearing work day after day, parents lifting toddlers and prams in and out of cars, weekend sports players turning up with the same ankle or shoulder niggle every winter, and a growing number of older residents managing arthritic knees and hips as the population here ages. Tendon and joint conditions thrive in exactly that kind of environment: repeated load, not enough recovery time, and a body that's asked to keep performing regardless.
It's also a treatment that fits naturally into a first appointment. Because there's no needle, no lead-in explanation required, and no discomfort involved, laser therapy is often one of the easier additions to introduce early in a treatment plan, alongside the assessment and initial exercise prescription, without needing a separate conversation about consent for something more invasive.
This is where it gets genuinely interesting, and where a lot of the scepticism starts to soften once people understand the mechanism rather than just the marketing.
Cells contain mitochondria, the structures responsible for producing ATP, which is essentially the energy currency your cells run on. Research into photobiomodulation suggests that when certain wavelengths of light hit a particular part of the mitochondria (an enzyme called cytochrome c oxidase), it can increase how efficiently those mitochondria produce ATP. More available cellular energy means cells have more capacity to do the things involved in tissue repair, including proliferating, migrating to where they're needed, and synthesising the proteins involved in healing.
Alongside that energy effect, laser therapy is thought to influence local blood flow and reduce the activity of inflammatory mediators in the treated area, which is part of why it's often used for both pain relief and swelling reduction. None of this happens instantly or dramatically in the way a strong painkiller might. It's a cumulative, cellular-level effect, which is a big part of why laser therapy is almost always delivered as a course of multiple sessions rather than a single treatment, and why it's used alongside other treatment (manual therapy, exercise, taping, activity modification) rather than instead of it.
In an everyday physiotherapy clinic, laser therapy tends to come up for a fairly specific set of presentations rather than being used on everything that walks through the door. The conditions it's most commonly applied to include:
It's worth going through a few of these in a bit more detail, because "used for tendon problems" doesn't tell you much about what that actually looks like week to week.
Tennis elbow and golfer's elbow are two of the more common referrals for laser therapy, largely because they're notoriously slow to settle with rest alone and respond reasonably well to a combination approach. A physiotherapist will usually pair laser with a graded loading program, meaning specific strengthening exercises for the forearm tendons, rather than relying on the laser by itself, because strengthening the tendon's capacity to handle load is what actually produces a lasting result. The laser's role is mostly about taking the edge off pain and supporting the tissue while that loading work happens.
Achilles and patellar tendinopathy follow a similar pattern. These are common in runners, footballers and anyone who does a lot of jumping or repetitive lower-limb loading, and they're notorious for flaring up again if the underlying capacity issue in the tendon isn't addressed. Laser therapy gets used here as a supporting treatment during the more painful early stages of rehab, when heavy loading exercise might be too aggravating to tolerate yet.
Plantar fasciitis is another frequent one, particularly among people who spend long hours on their feet: tradespeople, retail and hospitality workers, new parents pacing the house at 3am with a baby. As covered further down, the research specifically on laser for plantar fasciitis is a bit murkier than for some other conditions, so it tends to be used as one part of a plan that also includes stretching, footwear advice and sometimes taping, rather than the centrepiece of treatment.
For knee osteoarthritis, laser therapy (particularly higher-powered devices) has some of the more encouraging evidence behind it for short-term pain relief, which matters practically because pain is often the main barrier stopping someone with arthritic knees from doing the strengthening exercise that helps them long-term. Settling pain enough to get moving again is frequently the actual goal, rather than expecting the laser alone to reverse joint changes that have built up over years.
A lot of these overlap directly with what gets treated under our sports physiotherapy service in Truganina and Tarneit: the rolled ankles, sore knees and niggling tendons that don't resolve on their own. Laser therapy in that context isn't usually the whole treatment plan. It's one tool used alongside load management, strengthening exercise and manual therapy to help settle pain enough that the rest of the rehab can actually progress.
This is the part where it's worth being upfront rather than overselling anything, because the research on laser therapy is genuinely mixed depending on the condition, and it would be dishonest to pretend otherwise.
For a range of musculoskeletal conditions, systematic reviews and meta-analyses have found laser therapy to be an effective modality for reducing pain, with reasonably consistent results for things like lateral elbow tendinopathy (tennis elbow) and knee osteoarthritis. Some trials looking at hamstring tendinopathy in athletes have reported meaningful reductions in pain scores after a course of higher-powered laser treatment. For temporomandibular joint disorders, there's evidence rated as moderately strong in favour of using it.
On the other hand, the evidence for conditions like chronic neck pain, shoulder pain and lower back pain is considerably weaker and, in some reviews, inconclusive. A few well-designed trials on plantar fasciitis have found that laser therapy groups improved about as much as sham (placebo) laser groups, which is an important finding. It suggests some of the benefit reported by patients may come from the overall treatment context (attention, expectation, the rest of the session) rather than the light itself, at least for that particular condition. Standardised dosing protocols also aren't fully agreed upon across the research, which makes it harder to compare studies directly or say with total confidence exactly how much laser, at what wavelength, for how long, works best for a given condition.
What this adds up to, in plain terms: laser therapy has genuine, biologically plausible mechanisms and a reasonable evidence base for certain tendon and joint conditions, weaker support for others, and it isn't going to fix a structural problem like a torn ligament or an unstable joint on its own. A laser doesn't replace the need for a correct diagnosis, appropriate loading, and strengthening work. Where it tends to earn its place is as a supporting treatment that can help take the edge off pain and support the tissue environment while the actual rehabilitation work (exercise, load management, manual therapy) does the heavier lifting.
If you're booked in for laser therapy as part of a physiotherapy appointment in Truganina or Tarneit, the process itself is fairly unremarkable in the best possible way. There's no preparation required, no downtime afterwards, and nothing uncomfortable to brace for.
Your physiotherapist will first assess the area being treated, confirming that laser is an appropriate part of your treatment plan alongside whatever else is going on, whether that's strengthening exercises, manual therapy, or activity advice. The skin over the treatment area needs to be clean and free of lotions or sunscreen, since those can interfere with how the light penetrates. Both you and the practitioner typically wear protective eyewear during treatment, which is a standard safety precaution given the device is, after all, a laser, even a low-powered one.
The physiotherapist then holds the probe against or just above the skin over the target area and moves it in a slow, methodical pattern, or holds it in a fixed position depending on the device and protocol. Treatment time for a given area is usually somewhere between 30 seconds and a few minutes, and a session covering a couple of spots (say, both the origin and a trigger point along a tendon) might take five to ten minutes total. You shouldn't feel pain, heat, or really much of anything, beyond perhaps a very mild warmth for some people. It's genuinely one of the more low-key parts of a physio session.
Because the effect builds cumulatively at a cellular level rather than delivering an instant result, laser therapy is almost always prescribed as a course rather than a one-off. Depending on the condition, that might mean two sessions a week for a few weeks, tapering as symptoms improve. Your physiotherapist will reassess along the way and adjust the plan, including whether to keep laser in the mix at all, based on how you're actually responding rather than a fixed protocol regardless of progress.
One of the more common questions after a first laser session is simply "so what am I supposed to feel now?" The honest answer is usually not much immediately, which can be a bit anticlimactic if you're used to treatments that produce an instant, obvious effect. Because the mechanism is cellular and cumulative, most people don't notice a dramatic shift after treatment number one. Some people report a mild, gradual easing of pain over the following day or two; others don't notice anything until several sessions in, once the cumulative effect has had time to build.
Your physiotherapist should be tracking your progress against something concrete rather than just asking "does it feel better" in a general sense: things like how far you can bend a joint, how much load a tendon can tolerate before it complains, or a simple pain rating during a specific movement or test. That objective tracking is what tells you and your physiotherapist whether the treatment plan, laser included, is actually earning its place or whether it's time to adjust course. There's nothing you need to do differently at home purely because of the laser treatment itself. No special aftercare, no restrictions on activity beyond whatever applies to your underlying injury anyway. If anything, laser sessions are usually timed so that a home exercise program can run alongside them, since the two are meant to work together rather than one waiting for the other to finish.
Laser therapy is one of several modalities available at our Truganina and Tarneit clinics, and it's worth knowing roughly where it sits relative to the others, since patients often ask why one treatment gets chosen over another for a similar-sounding complaint.
Compared with dry needling, which works by inserting a fine needle directly into a tight muscle trigger point to create a local twitch response and release tension, laser therapy is non-invasive and generally more comfortable for people who aren't keen on needles. The two aren't really interchangeable, though: dry needling tends to be chosen specifically for muscle tightness and trigger points, while laser gets used more often for tendon and joint conditions or where needling isn't appropriate, such as directly over a healing surgical wound.
Compared with electrotherapy modalities like ultrasound or TENS, laser therapy works through a different mechanism entirely (photochemical rather than mechanical vibration or electrical nerve stimulation), and different conditions tend to respond better to one than the other. Your physiotherapist will typically choose based on what's actually going on in the tissue, your prior response to treatment, and sometimes simple things like whether you've responded well to a particular modality before.
None of these are used as a stand-alone fix at Wellcare Physio. They're building blocks in a broader treatment plan that also includes manual therapy, tailored exercise, and practical advice about load, posture and daily activity, because that combination is what actually resolves most musculoskeletal problems over the medium term, not any single passive treatment on its own.
If you start reading around the topic, you'll come across two related but slightly different terms: low-level laser therapy (LLLT) and high-intensity laser therapy (HILT), sometimes also called Class IV laser. Both work on the same underlying photobiomodulation principle, but HILT devices deliver considerably more power, which allows the light to penetrate deeper into tissue and, in some trials, has produced faster or more pronounced pain reduction for conditions like knee osteoarthritis and hamstring tendinopathy.
That extra power comes with the need for more careful dosing and technique, since there's more energy being delivered into the tissue. Neither version is simply "better" across the board. The right choice depends on the condition, how deep the target tissue sits, and what a particular clinic's equipment and clinical protocols are set up for. What matters most for you as a patient isn't the acronym on the device but whether your physiotherapist can explain why they're using it for your specific presentation and what they expect it to achieve.
Laser therapy is a reasonable option to discuss with your physiotherapist if you're dealing with a tendon issue that's settled into a chronic, nagging pattern, joint pain from osteoarthritis that flares with activity, a stubborn muscle strain, or you're recovering from surgery and want support for tissue healing once your surgeon has cleared the area for treatment. It also tends to suit people who'd rather avoid needling, or who are looking for an additional tool alongside their exercise program rather than a replacement for it.
There are situations where it isn't appropriate, and a properly run clinic should be screening for these before treatment, not after. Laser therapy is generally avoided directly over cancerous or potentially cancerous tissue, over the abdomen or lower back during pregnancy, directly over the thyroid gland, and over the eyes. It's also used cautiously in people on photosensitising medication, and dosing is adjusted for people with darker skin tones, since melanin affects how much light is absorbed at the skin's surface versus how much reaches deeper tissue. None of this is exotic or rare to manage. It's standard practice, and it's exactly the sort of thing that should come up during your initial assessment if laser therapy is being considered as part of your plan.
It's also worth being realistic about what laser therapy won't do. It won't reduce a dislocated joint, repair a fully torn ligament, correct a structural instability, or substitute for surgery where surgery is genuinely needed. If your physiotherapist suspects something more serious is going on, such as a fracture, a complete tendon rupture, or signs of an infection in a post-surgical wound, laser therapy isn't the answer and shouldn't be offered as one. Part of a proper initial assessment is ruling those things out first, so that whatever treatment follows, laser included, is actually addressing what's really wrong rather than papering over it.
Does laser therapy hurt? No. Most people feel nothing at all, or at most a very mild warmth on the skin. There's no needle, no pressure, and no burning sensation involved.
How many sessions will I need? It varies by condition and how you respond, but because the effect is cumulative rather than immediate, laser therapy is almost always delivered as a course rather than a single session, often somewhere in the range of several sessions over a few weeks, reviewed and adjusted as you progress. Research trials on specific conditions have used anywhere from around six to twenty sessions, which gives a sense of the range, though your own plan will be based on your response rather than a fixed number set in advance.
Is laser therapy covered by Medicare or private health insurance? Laser therapy itself isn't a separately Medicare-rebated item. It's typically delivered as part of a standard physiotherapy consultation, so the usual physiotherapy rebate rules apply. Private health extras cover for physiotherapy generally applies, and Medicare rebates are available where you have a valid GP referral under a Chronic Disease Management plan, the same as for any other physiotherapy appointment. It's worth checking your specific policy, since extras cover varies between funds.
Will it work for my specific problem? That depends on what the problem actually is. The evidence is more supportive for certain tendon conditions and osteoarthritic joint pain than it is for others, such as general lower back pain, where results have been less convincing. Your physiotherapist should be able to tell you honestly whether laser is likely to help in your case or whether your time and money are better spent on a different part of the treatment plan.
Can laser therapy be used alongside other treatments in the same session? Yes, and it usually is. It's common to combine laser with manual therapy, taping, or exercise prescription in the same appointment, since they work through different mechanisms and aren't mutually exclusive.
Is it safe for children or older adults? Generally yes, with the same standard precautions that apply to anyone, including avoiding certain areas like the eyes and thyroid, and screening for the contraindications mentioned above. Your physiotherapist will factor in age, skin type and any relevant medical history before treating.
How is cold laser different from the laser used in surgery? Surgical lasers operate at power levels high enough to cut or ablate tissue through heat. Therapeutic (cold) lasers used in physiotherapy operate at a fraction of that power and work through a photochemical rather than thermal effect, so there's no cutting, burning or tissue damage involved.
Do I need a referral to access laser therapy? No, you can book directly for a physiotherapy appointment without a GP referral. If you're being treated under a Medicare Chronic Disease Management plan, WorkCover, TAC, DVA or an NDIS plan, the usual referral or funding arrangements for those pathways still apply, the same as for any other physiotherapy treatment.
What happens if laser therapy isn't helping after a few sessions? A reasonable clinic should be reassessing your response along the way rather than running through a fixed number of sessions regardless of outcome. If there's no meaningful change in your pain or function after a sensible trial period, that's useful clinical information in itself, and your physiotherapist should be adjusting the plan, whether that's more loading exercise, a different manual therapy approach, or referral on for imaging or specialist review if something structural needs a closer look.
Can I have laser therapy as part of a mobile or home visit? That depends on the equipment a particular clinic uses, since laser devices are often clinic-based rather than portable kit carried to home visits. If you're receiving care through our mobile physiotherapy service and are curious whether laser therapy could be included, it's worth asking directly, and your physiotherapist can confirm what's practical for your situation and whether an in-clinic appointment for that specific treatment makes more sense alongside your home-based sessions.
Laser therapy isn't a miracle cure, and any physiotherapist telling you it is deserves a raised eyebrow. What it is, based on a reasonable body of research, is a low-risk, painless treatment that has a genuine role to play for certain tendon injuries, osteoarthritic joint pain and soft tissue conditions, usually as one part of a broader plan rather than the whole plan itself. Where the evidence is weaker, a good clinic should say so rather than pushing it regardless.
If you've got a stubborn tendon issue, joint pain that flares with activity, or you're recovering from an injury or surgery and want to know whether laser therapy is a sensible addition to your treatment, book an assessment at our Truganina clinic or Tarneit clinic. Your physiotherapist will look at what's actually going on, talk you through whether laser therapy fits your situation, and build a plan around what the evidence, and your own response to treatment, actually supports.
And if it turns out laser therapy isn't the right tool for what you're dealing with, that's a perfectly good outcome from an assessment too. The goal was never to sell you a specific modality. It's to work out what's actually causing your pain and put together a plan, laser included or not, that has a genuine chance of getting you back to doing the things you'd rather be doing than sitting in a physio clinic.
