Fascia guide
A trigger point, or muscle knot, is a tender spot in a tight band of muscle that can send an ache somewhere else, such as from the top of the shoulder into the head. When knots are blamed for ongoing pain in one region, it's called myofascial pain syndrome. The tender spots are real. What they are is a long-running argument: examiners often disagree about where they are, and critics say the theory behind them has been refuted.
The practical answer is calmer than the argument. Pressing a knot for 30 to 90 seconds eases it for a while. Dry needling's short-term benefit is uncertain, and no better than other physiotherapy. For the aching neck and shoulder muscles people call knots, strength training is the best-tested approach.
This guide covers the debate with its numbers, how to press a knot yourself, what needles and injections offer, a routine, and when a knot needs a doctor.
Experts agree a trigger point is a tender spot in a tight band of muscle that can send pain elsewhere. Trained examiners agree only moderately on where they are, and critics argue the theory behind them has been refuted. The tender spots are real; what they are is unsettled.
Pressing a knot for 30 to 90 seconds eased pain and tenderness straight away in a trial of 119 people, and a 5-day home programme of pressure then stretching helped in another trial. The effect is short-lived.
For the aching neck and shoulder muscles people call knots, strength training has the best evidence. The trials were in trapezius muscle pain and frequent neck and shoulder pain, not diagnosed trigger points, so applying them to knots is our inference.
Reviews disagree on whether dry needling beats a sham, partly because a fake needle is hard to make convincing. Where it seems to help, the effect is short-term and no better than other physiotherapy.
Trials found the same effect whatever was injected, and dry needling did as well. The National Institute for Health and Care Excellence (NICE) advises against starting steroid trigger point injections for long-term pain with no clear underlying cause.
Morning stiffness in the shoulders and hips that lasts more than 45 minutes, pain all over with tiredness, or chest pain needs a doctor, not pressure.
In an international consensus of 60 experts, three signs define a trigger point: a taut band in the muscle, a hypersensitive spot, and referred pain, meaning pain or another sensation, such as a dull ache, tingling or burning, felt somewhere else. An 'active' trigger point brings on your own familiar symptoms; a 'latent' one is tender but isn't your pain. The panel added that no fixed location of the spot or its referred pain should be expected.
Source 1
Myofascial pain syndrome is pain in one region of the body put down to trigger points, felt at the spot or further away when the muscle is pressed.
Source 17
Fibromyalgia is different: long-term pain all over the body, with tiredness, poor sleep, problems with memory and concentration ('fibro-fog') and sometimes irritable bowel syndrome. NICE counts it as chronic primary pain, meaning long-term pain with no clear underlying condition. The two can overlap, and fibromyalgia needs a GP's assessment.
There is no accepted test to confirm a trigger point. In a review of 9 studies, agreement between examiners varied widely and was worst for the signs meant to be objective: the taut band and the twitch. A 2017 meta-analysis put agreement at a kappa of 0.45, where 1 is perfect and 0 is chance, with tenderness and recognising the pain the most reliable signs. Studies have used 19 different sets of criteria.
Small studies report electrical 'endplate noise' at trigger point sites in all 11 muscles tested, raised inflammatory chemicals near active trigger points in 9 people, and small, stiff nodules on ultrasound in 9 people. Supporters see these as signs of a tiny patch of muscle that stays contracted and irritates nearby nerves. The chemical changes also showed up in a pain-free calf muscle, which fits a body-wide change as well as a local one.
A review in the journal Rheumatology argues that the theory of trigger points causing pain has been refuted, while accepting that the symptoms are real and saying sensitised nerves explain them better. Supporters replied that the review was biased. The site's muscle guides take the same middle view: specific trigger point claims are mixed.
The tender, sometimes lumpy spots are real, and pressing them can bring on a familiar ache. Whether they're a tiny contracted patch of muscle or sensitised nerves, what helps is much the same: brief pressure for relief, and strength and activity for lasting change. Fascia's own rich nerve supply is covered in the fascia chapter.
In 119 people with neck trigger points, sustained pressure (called ischaemic compression) eased pain and tenderness straight away, best at a gentle pressure for 90 seconds or a firmer one for 30 seconds. In 40 people, a 5-day home programme of pressure followed by stretching reduced pain and tenderness more than range-of-motion exercises. A review found moderately strong evidence for immediate relief and only limited evidence for lasting relief.
In 56 people with tension-type headache, 12 sessions of trigger point massage over 6 weeks reduced how often headaches came, but so did a fake treatment (switched-off ultrasound), and the two didn't differ. Massage did improve tenderness and how much better people felt.
Source 27
For long-term jaw pain (temporomandibular disorder, TMD), a network meta-analysis of 153 trials found manual trigger point therapy gave 32 more people in every 100 an important drop in pain than a placebo or sham, on high to moderate certainty evidence. A BMJ guideline strongly recommends it.
In 72 people with long-term shoulder pain, 12 weeks of weekly trigger point treatment with stretching and home exercise improved a 100-point disability score by 7.7 points more than a waiting list, and 55% felt better against 14%. There was no placebo comparison, and the trial was smaller than planned.
Source 30
In 48 women with trapezius muscle pain, 10 weeks of strength training for the painful muscle cut their worst pain by about 79%, while general fitness on an exercise bike gave only a brief, small drop. In 198 workers with frequent neck and shoulder pain, elastic band training for 2 minutes a day, 5 days a week, for 10 weeks reduced pain by 1.4 points out of 10 more than health advice alone, and eased tenderness. A Cochrane review rates strength training for long-term neck pain as moderate-quality evidence.
These trials were in muscle pain, not in diagnosed trigger points, so applying them to knots is our inference.
An umbrella review of 36 reviews found dry needling relieved pain in the short term better than a sham or no treatment in every body region, but no better than other treatments, with little data on longer-term effects. An earlier meta-analysis of the 4 sham-controlled trials (134 people) found no clear difference from a placebo.
Part of the problem is the fake needle. There's no agreed sham that feels like real needling, and trials that blind people poorly tend to overstate effects, so these results are hard to judge.
A review of 13 trials of dry needling by physiotherapists found no clear benefit at 6 to 12 months. Added to guideline physiotherapy for neck pain in 116 people, dry needling eased pain a little at 1 month but not at 3 or 6 months, and didn't change disability.
In 84 people with heel pain, 6 weekly sessions of dry needling eased first-step pain by 14 points out of 100 more than a sham, which is below the smallest change people notice, and minor side effects followed 32% of real sessions. A 2023 heel pain guideline still gives it a Grade B.
In trials comparing different injections into trigger points, the effect didn't depend on the substance, and dry needling did as well. A review of 15 trials found no clear evidence of benefit or of no benefit. A Cochrane review of 4 trials of botulinum toxin found the evidence inconclusive. In one trial, soreness after treatment affected everyone given dry needling and 42% of those given a lidocaine injection.
For chronic primary pain, NICE says to consider a single course of acupuncture or dry needling, but only if it's given in the community by a suitably trained professional and uses no more than 5 hours of their time. It advises against starting steroid, or anaesthetic and steroid, trigger point injections for this kind of pain.
Source 13
NICE says do not offer acupuncture for low back pain, and do not offer acupuncture or dry needling for osteoarthritis.
A 2023 heel pain guideline gives dry needling of calf and foot trigger points a Grade B. A BMJ guideline on chronic jaw pain makes a conditional recommendation against trigger point injections and botulinum toxin injections.
Both use thin, solid needles. Dry needling aims at trigger points using muscle anatomy, while acupuncture uses points from traditional or Western systems. A Cochrane review of back pain counted needling at trigger points as acupuncture, and NICE groups the two. The NHS may offer acupuncture for long-term pain.
Gentle pressure, around where it first turns uncomfortable, for up to 90 seconds, or a little firmer for about 30 seconds, then stretch the same muscle. The pressure times come from a trial of 119 people and the order, pressure then stretch, from a 5-day home programme. Do 1 to 3 spots, once or twice a day (our editorial starting point).
Elastic band training for 2 minutes a day, 5 days a week, for 10 weeks: the dose that eased neck and shoulder pain in a trial of 198 workers.
Source 7
Shoulder and neck strength exercises such as shrugs, one-arm rows, lateral raises and reverse flys, 3 sessions a week for 10 weeks. The exercises come from the trapezius pain research and the 10 weeks from its trial; the 3 sessions a week and the sets are our editorial starting point.
NICE recommends a supervised group exercise programme for chronic primary pain, and encourages staying physically active.
Source 13
Heel pain trials of dry needling used weekly sessions for about 6 weeks. NICE limits a course of acupuncture or dry needling for chronic primary pain to 5 hours of professional time.
Hold times from a trial of sustained pressure (Hou 2002); pressure then stretch from a home programme (Hanten 2000). The number of spots and how often are our editorial starting points. Stay off the neck and the bony spine, and stop for tingling, numbness or pain that spreads.
Loading the 3D figure…
The movement on the figure: Upper back foam rolling
Pause for 30 to 90 seconds on a tender spot instead of rolling past it, and never press a calf that is swollen, red or throbbing.
3D demoUpper back foam rollingIntermediate · A foam roller
3D demoGlute and piriformis foam rollingIntermediate · A foam roller
3D demoCalf foam rollingIntermediate · A foam roller
3D demoFoot roll (ball or roller)Beginner · A massage ball
3D demoChest ball release (against a wall)Beginner · A massage ball + A wall
3D demoForearm ball rollBeginner · A massage ballStretch the area you pressed, gently, for 20 to 30 seconds.
Shrugs, rows, lateral raises and reverse flys are the exercises from the neck and shoulder muscle pain research; start light and build up over weeks.
3D demoBand lateral raiseBeginner · A band
3D demoDumbbell ShrugBeginner · A dumbbell
3D demoSupported single-arm dumbbell rowIntermediate · A dumbbell + A bench or box
3D demoBent-over reverse flyIntermediate · A dumbbell
3D demoDumbbell lateral raiseBeginner · A dumbbell
3D demoChin tuckBeginner · No equipment
3D demoBand pull-apartIntermediate · A bandThe knots routine pairs brief self-pressure with the shoulder strength work from the trials; the strength routine adds deep neck holds. Doses are suggested starting points.
Knotted neck and shoulders: a minute of self-pressure, two gentle stretches, then the shoulder-blade strength work that eased neck pain in trials.
15 minBeginner8 movesA foam roller, A bandDeep neck holds and shoulder-blade strength in under 20 minutes: one of the best-supported kinds of exercise for a stiff, sore neck.
18 minBeginner11 movesA band, An anchor pointEight gentle neck and shoulder stretches for desk stiffness, done standing or seated in ten minutes.
10 minBeginner8 movesA wallA 12-minute routine for a stiff upper back and rounded shoulders: chin tucks, wall angels, Y-T-W raises and open books.
12 minBeginner8 movesA foam roller, A wallAs a precaution:
The NHS says acupuncture may not be safe if you take blood-thinning medicine, are at increased risk of bleeding, or have a skin condition or skin infection. One NHS trust's local guideline also rules needling out with bleeding or clotting disorders, in pregnancy, with needle phobia or an allergy to stainless steel, and over a swollen limb or one at risk of lymphoedema.
Minor bruising, bleeding or soreness followed 19% of 7,629 treatments in one survey and 37% of 20,464 sessions in another. Serious events were rare, under 0.1%, but needling the shoulder, upper back or lower neck can puncture a lung: one Belgian hospital saw 4 cases in 15 months, and symptoms can take a day or two to appear.
Call 999 (911 in the US) for:
Book an appointment if:
Whether there's a contracted patch of muscle at all is disputed. What pressure changes is how tender the spot feels, for a while, and dense tissue doesn't change shape under hand pressure.
The expert consensus itself says no fixed location of the spot or its referred pain should be expected, and examiners disagree about locations.
Tender spots that aren't your pain are common enough to have a name: latent trigger points. In tension headache, a sham treatment cut headache frequency as much as trigger point massage did.
No long-term benefit has been shown. Added to physiotherapy for neck pain, its small effect had gone by 3 months.
The effect didn't depend on what was injected, and dry needling did as well.
Stretching on its own may not change long-term neck pain, on low-quality evidence, and strength training has better support. A stretch after pressure is fine for comfort.
It's a tender spot in a tight band of muscle that, when pressed, can send an ache or another sensation somewhere else. An active one brings on your familiar pain; a latent one is tender but isn't your pain. Most people call them muscle knots.
The tender spots are real. What they are is disputed: trained examiners agree only moderately on where they are, and there's no test to confirm one. Critics argue the theory has been refuted, while supporters point to small studies of local changes in the muscle.
No one knows for sure. Supporters think a tiny patch of muscle stays contracted and irritates nearby nerves, while critics think sensitised nerves explain the tenderness. Small studies found chemical changes near trigger points, but also in a pain-free muscle elsewhere.
For quick relief, press it with a ball or roller for 30 to 90 seconds, then stretch the muscle. For aching neck and shoulder muscles, strength training over about 10 weeks has the best evidence. Those trials were in muscle pain rather than diagnosed knots, so this is a reasonable inference, not a proven cure.
Use a pressure you can breathe through, around where it first turns uncomfortable. In rolling studies, near-painful pressure gave no extra benefit. Stop for tingling, numbness or pain that spreads.
No. Myofascial pain syndrome is pain in one region put down to trigger points, while fibromyalgia is pain all over the body with tiredness, poor sleep and problems with memory and concentration. Both are helped by exercise, and fibromyalgia needs a GP's assessment.
The evidence is mixed. Reviews disagree on whether it beats a sham, partly because fake needling is hard to make convincing, and where it helps, the effect is short-term and no better than other physiotherapy. NICE allows a single short course for long-term pain with no clear cause, but not for osteoarthritis.
Both use thin, solid needles. Dry needling aims at trigger points using muscle anatomy, while acupuncture uses points from traditional or Western systems. Cochrane and NICE group them together.
Minor bruising, bleeding or soreness follows roughly 1 in 5 to 1 in 3 sessions. Rarely, needling near the chest, upper back or lower neck punctures a lung. New chest pain or breathlessness after needling needs 999.
It's unclear. What's injected doesn't seem to matter, and dry needling did as well. NICE advises against starting steroid trigger point injections for long-term pain with no clear underlying cause.
Some researchers think trigger points in the neck can bring on tension headache pain. But in a trial with a sham comparison, trigger point massage cut headache frequency no more than the sham did. A sudden, severe headache needs 999.
A chest muscle can be tender, but don't assume chest pain is a knot. Call 999 for chest pain that doesn't go away, spreads to the arm, neck, jaw or back, or comes with sweating, sickness or breathlessness.
Movement education, not medical advice. Stop for sharp or increasing pain, numbness or tingling, and get individual advice if you are pregnant, after an injury or surgery, or managing a health condition. Health disclaimer.
