The sternocleidomastoid is the muscle you see standing out on the sides of the neck when you turn your head. It is easy to reach, you can feel it yourself, and it is painful to the touch in a great many people. That is why it has become the favourite culprit online for headaches, wry neck and dizziness.
The honest part is that the link with headaches exists and has been documented, but the leap from "this muscle is tender" to "this muscle is the cause" has not been proven. And what has been studied on the sternocleidomastoid is not self-massage at home.
This article does not dodge the topic: exercises for the sternocleidomastoid are still useful, but they need to be put in the right place. Below you will find what holds up under the evidence, what does not, and how to still make good use of what you can do at home.
⚠ Important: read this before continuing
The exercises and advice in this article are general indications and may not suit your situation. Every person has a unique clinical history: what works for others could be counterproductive for you.
Want a professional's opinion? Start with the questionnaire: you register and see who will follow you, a physiotherapist registered with the Register chosen for your case, whom you can write to in chat. If you would rather hear a voice, the first consultation is free and we look at your situation together.
First of all: when it is NOT a muscle problem
This section comes at the top and not at the bottom for a specific reason. The front of the neck is the area of the body where "minor" symptoms and serious ones look most alike, and where the instinct to massage hard is the wrong move.
Call 112 if neck pain or a headache:
- has come on suddenly and is different from any other pain you have had before, especially after an injury, a whiplash, a sudden movement or a neck manipulation;
- comes with a drooping eyelid and a smaller pupil on one side, double or blurred vision, difficulty speaking or swallowing, weakness or tingling on one side of the body, unsteadiness when walking.
These are the signs with which a dissection of the cervical arteries (carotid or vertebral) can present. A review published in the British Journal of Hospital Medicine describes it as a major cause of ischaemic stroke in young adults and stresses exactly this point: some patients arrive with apparently benign symptoms such as headache, neck pain or dizziness. This is not the moment to look for a trigger point.
See a doctor without delay if you have:
- fever with a stiff neck, inability to bring your chin to your chest, and discomfort in bright light;
- a hard lump or swelling in the neck that does not move, is not tender to the touch and does not go away;
- hoarseness lasting for weeks, difficulty swallowing, unexplained weight loss, or night sweats;
- weakness in one arm, loss of hand dexterity, changes in gait or bladder control;
- pain that started after a significant injury, especially with pain along the midline of the spine.
And a note on dizziness, because it is the most overused claim about this muscle: sudden spinning dizziness with hearing loss, ringing in the ears, severe nausea or neurological signs should be assessed by a doctor, not treated with neck exercises.
Sternocleidomastoid: what it is, really
The sternocleidomastoid (SCM) has two heads that arise from the manubrium of the sternum and the medial third of the clavicle, and join to insert on the mastoid process, the bone you can feel sticking out behind the ear. It is innervated by the accessory nerve.
When it contracts on one side only, it turns the head towards the opposite side and tilts it towards its own side; when both work together they bend the neck forward and help stabilise the head. It is also an accessory breathing muscle: if you mostly breathe with a high chest, it works far more than it should.
It has one feature that explains much of its reputation: it is superficial, visible and palpable. You can pinch it between your fingers, which is impossible with the deep muscles of the neck. The muscle you can feel easily becomes the muscle you blame.
It is also the muscle involved in congenital torticollis, the one that in the first months keeps a baby's head always tilted to the same side. There, the yardstick is not yours: what matters is how much head control the baby has for their age, milestone by milestone, the sequence of the first months and the pull-to-sit test.
And the timing is not set by the exercise chosen but by the calendar: in neonatal torticollis it is the age at the first consultation that predicts how long treatment will last, as we explain in congenital torticollis: what to do.
The link with headaches exists. The cause does not
This is the central point of the article, and it is worth being precise.
A cross-sectional study from 2025 published in the Journal of Manipulative and Physiological Therapeutics examined 60 participants, divided into two groups according to the presence or absence of primary headache assessed with the Headache Impact Test, palpating the sternocleidomastoid and the upper trapezius on both sides. A significant association emerged between trigger points in the SCM and headache (right SCM: χ² = 6.696, P < 0.010, φ = 0.334; left SCM: χ² = 8.076, P < 0.004, φ = 0.367), while for the upper trapezius the association was weak and not significant.
Three things this study does not say, and which online are taken for granted:
- It does not say that the SCM causes headaches. It is a cross-sectional study: it captures two things that go together. The review cited below notes that the presence of active trigger points goes along with a higher degree of sensitisation in tension-type headache: if the pain threshold is lowered, palpation is more painful because there is a headache, not necessarily the other way round.
- It is not a large sample. Sixty people.
- A φ coefficient of around 0.33 to 0.37 indicates an association, not a match. There are people with a tender SCM and no headache, and vice versa.
A review in Expert Review of Neurotherapeutics gives the broader picture: active trigger points in the suboccipital muscles, the upper trapezius, the sternocleidomastoid, the temporalis and the eye muscles have been associated with episodic and chronic tension-type headache, and their presence goes along with a higher degree of sensitisation. The authors write that the evidence on deactivating trigger points is preliminary and that it might work in a subgroup of patients who respond well to this approach. Not in everyone, and not as a rule.
There is also a problem upstream, which is rarely discussed: the trigger point is hard to identify reliably. A systematic review in the Clinical Journal of Pain examined the reproducibility of physical examination for diagnosing trigger points: none of the available studies met all the quality criteria, and agreement values varied enormously. They were higher for subjective signs such as tenderness (kappa from 0.22 to 1.0) and pain reproduction (0.57 to 1.00), and lower, sometimes zero, for objective signs such as the taut band (from −0.08 to 0.75) and the local twitch response (from −0.05 to 0.57). The authors' conclusion is clear: physical examination cannot at present be recommended as a reliable test for diagnosing a trigger point.
If two experienced clinicians struggle to agree on where the point is, self-diagnosis in front of the mirror should be taken for what it is: a clue, not a verdict.
Sternocleidomastoid exercises: what really works
The Cochrane review from 2015 on exercises for mechanical neck disorders included 27 randomised trials (2,485 participants analysed out of 3,005 randomised). The results need to be read line by line, because they reverse the usual order of priorities:
- for acute neck pain no evidence was found;
- for chronic neck pain, evidence of moderate quality in favour of strengthening the neck, shoulder blades and upper limb, with a moderate to large effect on pain immediately after treatment (pooled SMD −0.71; 95% CI −1.33 to −0.10) and at short-term follow-up;
- moderate-quality evidence also for combined programmes of strengthening and stretching of the neck, shoulder and shoulder blades, with an effect on pain (SMD −0.33; 95% CI −0.55 to −0.10) and on function (SMD −0.45; 95% CI −0.72 to −0.18);
- low-quality evidence that stretching alone, such as breathing exercises and general fitness, may not change pain and function;
- for chronic cervicogenic headache, moderate-quality evidence in favour of static-dynamic strengthening and endurance exercises for the cervico-scapulo-thoracic complex.
Put simply: the part of the article everyone is looking for, stretching, is the one with the weakest support. The part almost nobody does, strengthening, and not of a single muscle but of the whole neck, shoulder blade and arm complex, is the one with the best evidence. If you have to choose where to put the little time you have, put it into strengthening.
The least comfortable line of the same review should also be stated, because it is usually skipped: the authors found no high-quality evidence, and they conclude that uncertainty remains about how effective exercise is for neck pain. Strengthening is the best choice among those available, not a certainty, and this applies even more to exercises for the sternocleidomastoid, which do not appear in those studies as a programme of their own. They also add that the optimal dose is still to be established: how many repetitions, how many times a week, for how long, is not a question research can yet answer.
Note also something that is always overlooked: in the studies, the strengthening was not aimed at the sternocleidomastoid. The sternocleidomastoid exercises you find listed online as a standalone programme do not correspond to anything tested in this form. It was aimed at the cervico-scapulo-thoracic region as a whole. There is no validated "SCM-only" programme, and trying to build one is probably the wrong way to approach the question.
Self-massage of the sternocleidomastoid: what it can and cannot do
This is where the most common logical shortcut on the Italian web needs flagging.
The only randomised trial of note on this specific muscle is from 2020, in the American Journal of Physical Medicine & Rehabilitation: 40 people with migraine originating from myofascial trigger points in the sternocleidomastoid, 20 in the treatment group and 20 controls. The treated group received three sessions of dry needling in the region of the trigger point and showed a significant reduction in headache parameters immediately after the intervention and at one-month follow-up, with an increase in pressure pain threshold, cervical range of motion and muscle thickness compared with controls.
Dry needling is a technique performed by a clinician with a needle, on patients selected for a precise diagnosis. It is not proof that pinching your own neck with your fingers gets the same result. These are two different things and they need to be kept separate.
And even taken for what it is, that study is small: forty people in total, the longest follow-up is one month, and the abstract does not describe what the comparison group received. So how much of the benefit comes from the needle and how much from the context of the treatment remains an open question.
So is self-massage any use? Probably, but for what it is: a temporary modulation of the symptom, which lowers the sensitivity of the area and makes the next movement more tolerable. Use it as a starting point for active work, not as a therapy.
And do it safely. Under and beside the SCM run the carotid artery, the carotid sinus, the jugular vein, the lymph nodes and the thyroid. The practical rule:
- grip the belly of the muscle between thumb and index finger and lift it away from the neck, as if you were plucking a string; never press deeply towards the throat;
- if you feel a pulse, move your fingers: that is not muscle;
- no firm pressure on the upper, front part of the neck, below the angle of the jaw;
- if dizziness, a sensation of fainting, nausea or blurred vision appear, stop straight away and do not try again;
- a few minutes in total, with a pressure that stays below the point where you hold your breath.
An important tip: before trying these exercises, make sure you have had a correct diagnosis. People often think they have one problem, but the real cause of the pain is something else. Doing the wrong exercises can make things worse rather than better.
Stretching the sternocleidomastoid
These are the sternocleidomastoid exercises most searched for, and they should be done with the right expectations: they stretch, they bring relief, they are not the lever that changes the course of things. Do them if you like, but do not stop there.
1. Side-bend and rotation stretch. For the right side: tilt your head towards your left shoulder, then turn your face to the right, bringing your gaze slightly upwards. You can support it with your left hand resting over the ear, without pulling. You should feel a stretch along the front and side of the right neck.
2. Stretch with the shoulder anchored. Sitting, hold the edge of the chair with the hand on the side you are stretching: this stops the shoulder from rising and cancelling the movement. Tilt your head to the opposite side and add the rotation as above.
For both: the sensation should be tension, never pain, never tingling towards the arm or the head. Hold the position for a few slow breaths and release without jerking. There is no "validated" duration for this muscle: anyone who gives you a number to the second is making it up.
And above all: do not force the rotation to the end of its range with the head tipped back. It does nothing to increase the stretch, since the muscle lengthens well long before the end of its range, and it is the position you avoid, out of caution, when working on the front of the neck.
Strengthening: the part that really matters
This is where time pays off. The principle, consistent with the Cochrane review, is isometrics to build tolerance to load and work on the whole region, not a hunt for the single muscle.
Low-intensity isometrics. Standing or sitting, place your palm on your forehead and press your head into your hand without any movement. Then the hand on the temple, pressing sideways, one side and then the other. Then the hand behind the head. Low intensity: you are looking for stable activation, not a strength test. The neck should not shake and the jaw should stay soft.
Chin tuck. Lying on your back with no pillow, slide your chin backwards as if making a double chin, without lifting your head. This activates the deep flexors, which are the functional opponents of an SCM that is always on alert. It is the exercise most people skip because "you do not feel anything": that is exactly the sign you are doing it right.
Head lift, only afterwards. From the same position, keep the chin tuck and lift your head a few centimetres off the bed. If your chin pushes forward before your head lifts, you have gone beyond your current ability: go back to the chin tuck.
The rest of the body. Shoulder-blade pulls, band rows, work on the external shoulder rotators. In the studies the scapulo-thoracic and upper-limb component was an integral part of the programme, not an add-on: this is why sternocleidomastoid exercises, taken alone, deliver less than they promise. You will find a more complete progression in Neck Pain Exercises: the Routine That Works.
Acute wry neck: how to move
In the common wry neck, the one that wakes you with your neck locked to one side, the sternocleidomastoid is in protective mode. The work should be done within the limits of pain: slow, small rotations, with the range increasing day by day, and no attempt to "unlock" it with a jerk.
Local heat before moving is a reasonable comfort measure: it makes the area more tolerable and lets you move sooner. Treat it for what it is, a way to be more comfortable while you move, and not as a cure that speeds up recovery, because that has not been shown.
If the locked neck does not improve at all within a few days, if fever appears, if the lock came on after an injury, or if there are symptoms in the arm, move from home management to assessment. The same applies to neck pain lasting for months: the strategies change, and you will find them in the guide to persistent neck pain.
How often, and what to expect
Here we need to be honest about a point that almost every article resolves with a table of sets and repetitions: the dose is not established. The Cochrane review concludes precisely by saying that future research must investigate the optimal dose. So anyone who gives you the exact number of seconds, sets and weekly sessions for sternocleidomastoid exercises is reporting a clinical habit, not a finding.
What can be said without making things up: a programme needs to be done often enough to become a habit, and light enough not to leave you worse the next day. If you work at a computer, the most sensible moment for an active break is before your neck starts to complain, not after.
On expectations, two honest limits:
- neck exercise has shown its effects on chronic pain, not on acute pain, where Cochrane found no evidence. If your pain appeared yesterday, the most useful thing is to keep moving, not to start a programme;
- if after a few weeks of regular work nothing at all has changed, the answer is not to increase the repetitions: it is to question the hypothesis. This also applies when the suspicion was precisely the sternocleidomastoid.
On how much home exercise really delivers, we have covered it directly in home exercises and what the science says.
And dizziness? Let's put it in perspective
The formula "contracted SCM equals dizziness" circulates everywhere. Here is what the literature says about cervicogenic dizziness: a 2022 systematic review with meta-analysis in the Journal of Manual & Manipulative Therapy analysed 13 randomised trials (898 patients), of high methodological quality in two cases, moderate in five and low in six. The conclusion: moderate-quality evidence that manual therapy reduces the symptoms of cervicogenic dizziness and cervical and balance dysfunctions; the effect is stronger when exercise is added to manual therapy, but on that point the quality of the evidence is very low. The authors also note that only three of the thirteen studies specified the cause of the dizziness, and that the results on exercise in post-traumatic forms were inconsistent.
Watch out here too for the substitution of technique, the same trap as with dry needling: what showed the best evidence in that review is manual therapy performed by a clinician on patients with a diagnosis, not self-massage of the sternocleidomastoid in front of the mirror. And the combination with exercise, the part that looks most like what you could do at home, is precisely the one with the lowest quality of evidence.
There is a premise that nobody mentions: cervicogenic dizziness is a diagnosis of exclusion. It is only considered after vestibular, neurological and vascular causes have been ruled out. No article, this one included, can tell you that your dizziness comes from your neck, and no self-massage should be used as a diagnostic test.
In summary
The sternocleidomastoid is a real muscle, often tender, plausibly involved in some tension-type headaches. But it is also the easiest muscle in the neck to touch, and that has made it the scapegoat for very different symptoms.
What we can say honestly: the link with headache is documented but modest; self-diagnosis of a trigger point is not reliable; self-massage gives temporary relief and is not equivalent to the dry needling that was studied; strengthening the neck and shoulder-blade complex is the strategy with the best evidence among those available, which is not however high quality, and concerns chronic pain, not pain that has just appeared; the link with dizziness has not been proven.
This is not a reason to do nothing. It is a reason to move your effort to where it pays off, and to get assessed when the picture is unclear. If you want to understand whether the sternocleidomastoid really plays a part in your case and build a programme that makes sense for you, the physiotherapists at Ri-Hub can assess you through telerehabilitation and set up the work together with you. You will find general information about the area on the page dedicated to neck pain.
You might also be interested in:
Rotator Cuff Exercises: Complete Programme to Strengthen and Recover
Cervicobrachialgia: Symptoms, Causes and Treatment of Neck Pain Radiating to the Arm
Neck Stiffness: Causes, Exercises and How to Loosen the Neck
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The sternocleidomastoid is one muscle within the picture, not the picture itself: to place it in a complete programme, read Neck Exercises: What Really Works.
Sources
- Exercises for mechanical neck disorders, Cochrane Database of Systematic Reviews, 2015
- Association Between Sternocleidomastoid and Upper Trapezius Muscle Trigger Points and Headaches: A Cross-Sectional Study, Journal of Manipulative and Physiological Therapeutics, 2025
- Muscle trigger point therapy in tension-type headache, Expert Review of Neurotherapeutics, 2012
- Reliability of physical examination for diagnosis of myofascial trigger points: a systematic review of the literature, The Clinical Journal of Pain, 2009
- Effects of Dry Needling Technique Into Trigger Points of the Sternocleidomastoid Muscle in Migraine Headache: A Randomized Controlled Trial, American Journal of Physical Medicine & Rehabilitation, 2020
- Systematic review and meta-analysis of the therapeutic management of patients with cervicogenic dizziness, Journal of Manual & Manipulative Therapy, 2022
- A review of carotid and vertebral artery dissection, British Journal of Hospital Medicine, 2022
Last source check: August 2026.
