Also called: Infant torticollis; congenital muscular torticollis
Exercise strongly helps
Stretch
Strength
A baby who always looks the same way and rests their head on the same spot. One side of the neck is short or tight - and it responds extremely well to early treatment, which is why noticing it in the first weeks matters so much.
How common: 1-2% of infants; strongly associated with flat-head shaping
What it is
Congenital muscular torticollis is shortening or tightness of one sternocleidomastoid, the long muscle running from behind the ear to the collarbone. The head tilts toward the tight side and turns away from it, so the baby persistently looks one way.
The consequence beyond the neck is head shape. A baby who always rests on the same part of the skull develops flattening there - positional plagiocephaly - and the two conditions travel together. Both respond very well to early physiotherapy, and both become progressively harder to correct with delay.
What causes it
Most people have more than one of these at once, and they feed each other. Read the
list looking for the two or three that sound like your week rather than for the one
true answer — the ones that describe you are the ones worth acting on.
- Shortening of one sternocleidomastoid
- The muscle on one side is short or contains fibrous tissue, so the head tilts toward it and turns away from it. This is the core problem and it is what treatment addresses.
- Position in the womb
- Restricted space in late pregnancy, a breech position, or a first pregnancy with limited room can hold the head in one position long enough to shorten the muscle.
- Birth trauma
- A difficult delivery, particularly instrumental, can injure the muscle. The firm lump sometimes felt in the first weeks is thought to relate to this.
- Persistent positioning after birth
- Always feeding from the same side, always placing the baby the same way in a cot, or a cot positioned so the interesting side of the room is always the same direction.
- Time in car seats and bouncers
- Prolonged periods in devices that hold the head in one position reduce the variety of head positions and contribute to both the tightness and the flattening.
- Limited tummy time
- Tummy time develops neck strength and gives the head time off the back of the skull. Low tummy time is associated with both torticollis and head flattening.
- Multiple births
- Twins and higher multiples have less room in the womb and higher rates of both torticollis and head flattening.
- Other causes needing exclusion
- Rarely, a head tilt has other causes - eye muscle imbalance, a spinal abnormality or, very rarely, a tumour. A head tilt that appears later rather than from birth, or that comes with other symptoms, needs proper assessment.
- Delay in starting treatment
- Not a cause but the main determinant of outcome. Treatment started before three months has substantially better and faster results than treatment started later.
What actually helps
The short version: Shortening or tightness of one sternocleidomastoid, so the baby prefers to look one way and rests the head on the same spot
Strength work: Strengthening the opposite side through positioning and play - encouraging the baby to turn toward the non-preferred side
Stretching: Gentle sustained SCM stretching taught and supervised by a pediatric physiotherapist. NOT a parent-improvised technique
Massage: Very light SCM work as taught by the therapist
Also worth doing: Tummy time; alternating feeding sides; repositioning toys and the crib so the interesting side is the non-preferred side
What the evidence says: Early physiotherapy resolves the large majority of cases, and outcomes are much better before 6 months. Included because parents search for this constantly - but the routine must point to a clinician, not replace one.
The names above are the Targets qFIT tracks —
the Muscle Guide explains what each one does, and
Quick Add switches on the Exercises you
already have.
No ready-made routine for this one yet
249 of the 267 problems here have a routine already built, and this is not
one of them — usually because the work that helps is covered by a general routine
rather than needing its own. What actually helps above names the muscles and the
work involved, which is enough to put it together yourself.
Get it checked if…
A head tilt that appears after 6 months, or comes with eye movement problems or a neck lump, needs pediatric review before any stretching
And whatever the body part: chest pain or unusual breathlessness on
exertion; a fever alongside the pain; unexplained weight loss; pain that is constant and
unrelated to how you move; new numbness, weakness or loss of bladder or bowel control; or
one calf that is swollen, warm and painful. Any of those, stop and get assessed.
How it usually goes
Congenital muscular torticollis responds very well to physiotherapy, with the great majority resolving completely - and the results are substantially better and faster when treatment starts before three months. Head flattening also improves with repositioning, particularly early, and helmet therapy is available for more significant cases. A head tilt that appears after the newborn period, or with any other symptoms, should be assessed rather than assumed to be muscular.
Prevalence basis: Pediatric physiotherapy studies
This is general information, not a diagnosis, and it cannot examine you.
If it matches you, use it to ask better questions of a clinician rather than to replace one.