May 2026
Torticollis Baby: Causes, Symptoms, and What Parents Should Know
Torticollis in babies happens when one of the neck muscles, called the Sternocleidomastoid, is shorter than usual. This can happen because of how the baby was positioned in the womb. Sometimes, the baby’s head stays in a fixed position in the pelvis for weeks before birth, and that keeps this muscle short and tight. Early recognition helps guide effective next steps. Most cases respond well to movement and positioning. Understanding what to look for can reduce unnecessary worry. Pediatric guidance emphasizes that torticollis is a movement condition that improves with early positioning. However, torticollis can lead to two medical implications that require early attention. These are 1. flat head syndrome and 2. permanent change of muscle fibers also know as Congenital Muscular Torticollis. Read more about that below.
Torticollis is a head tilt caused by neck muscle tightness, not a problem with the brain or bones.
What torticollis looks like in a baby
In torticollis, a baby’s head tilts to one side while the chin turns in the opposite direction. This creates a consistent head position that may appear uneven. Parents often notice that their baby prefers looking and sleeping in one direction. Over time, this preference becomes more noticeable. Movements may appear limited and uncomfortable when trying to turn the head the other way. The pattern is usually consistent rather than occasional. This is one of the earliest visible signs. Torticollis can affect how a baby moves and interacts with their environment. Feeding may feel different depending on direction. Over time, this uneven movement can affect the shape of the babies head and cause plagiocephaly. These changes are usually gradual and subtle.
When and how torticollis usually appears
Torticollis is often noticed within the first 2 to 8 weeks of life. Most babies are born with it, while somes develop it shortly after birth. It may become more noticeable as babies spend more time lying on their back. Parents may first observe it during feeding or when placing the baby down. Due to the tight neck muscle, the baby lies with the head turned to one side.
Babies often show that they find it unpleasant when you turn their head to the other side. With congenital torticollis, a distinct bump develops in the neck after 3 weeks. This is located in the muscle on the side of the neck where the head tilts. Parents will also notice that the head of their baby becomes flattened as a result of the preferred position the baby has developed.
Early detection is therefore important. In many cases, the condition becomes clearer over a few weeks.
What causes torticollis in babies
The most common cause is tightness in the sternocleidomastoid muscle, which runs along the side of the neck. This muscle helps control head movement. Tightness can occur due to positioning in the womb or during birth. After birth, babies may continue to prefer one side, reinforcing the pattern. If there has been reduced blood flow and a lump subsequently develops in the neck, this is referred to as congenital muscular torticollis.
It is not caused by parenting or sleeping position. The condition develops from a combination of factors and starts in the womb. Side lying during the time the baby is awake is highly recommended as soon as the first signs are noticed . Side lying (from nap to nap) improves comfort for the baby, stimulates the recovery of the affected muscle and helps reduce the change of flat head syndrome.
It is important to know that torticollis usually gets better with early care. Parents can help by gently moving and positioning the baby, following their therapist’s advice. For more on whether this resolves on its own, read our article on will babies grow out of torticollis.
Longterm problems: Congenital Musculair Torticollis
Just like with 'general' torticollis with the congenital variant one of the neck muscles, called the Sternocleidomastoid, is shorter and tighter than usual. As said, this happen because of how the baby was positioned in the womb. In contrast to general torticollis with congenital torticollis the sternocleidomastoideus muscle gets less blood flow because of the baby’s tilted head position in the womb. As a result, around three weeks after birth, you might feel a clearly palpable lump in the neck. This lump is in the middle part of the muscle and shows the body is trying to repair the area. Because the muscle is tight, the baby’s head tilts to one side. This is the baby’s way of protecting the muscle so it can heal. It is therefore much more comfortable for the baby to lie on their side than on their back. Due to the risk of SIDS, only do this when the baby is awake and alternate between both sides.
Sometimes, during healing, the muscle fibers can change and become more like scar tissue. This is why therapists often follow the baby’s progress until they are about one year old. If the head tilt stays and the muscle feels very stiff, they may refer the baby to a specialist. In some cases, surgery may be needed to release the tight muscle.
Torticollis and flat head syndrome
Torticollis is closely linked to positional head shape changes. When a baby prefers one side, pressure is applied repeatedly to the same area of the head. This can lead to flattening, often called plagiocephaly. The two conditions often appear together. Torticollis influences movement, and movement affects head shape. This does not automatically mean a serious condition is present. Most cases improve with positioning and movement. Understanding this connection helps guide early action. It is advisable to closely monitor the shape of the head.
Nowadays, therapists often use an app to take measurements, the Skully Care app. This is also available to parents at a reasonable price. With clear output values, parents can see whether the shape of the head is normal (green), moderately flat (yellow), or clearly flattened (orange or red). By repeating the measurements every few weeks, you can see if the shape is moving in the right direction or if further action is needed.
How doctors evaluate torticollis
Doctors and therapists evaluate torticollis by observing head position and range of movement. They assess how easily the baby turns their head in both directions. Clinical evaluation focuses on movement patterns rather than imaging in most cases. Pediatric PT's look for consistent head tilt, reduced range of motion, and preference patterns rather than isolated moments of stiffness. To detect potential skull deformation early, therapists often use the Skully Care app; this method has proven to be accurate. Visual assessment has proven not to be as reliable. If needed, further tests may be done to rule out other causes. The goal is to confirm muscle tightness and follow the shape of the head. Early evaluation helps guide effective interventions. Most assessments are straightforward and non-invasive.
What helps and when to act
Early movement and positioning are the main ways to support improvement. Encouraging babies to turn toward the less preferred side helps balance movement. Side lying plays an important role in relaxing the tight and affected muscles. Playing and relaxing on the non-preferred side of the body and head during the time the baby is awake can make a big difference. Do not apply forceful movement or correction. Progress is usually gradual over weeks. Many babies improve with consistent practice. Early support helps prevent longer-term imbalance. For practical guidance on where to begin, read our article on torticollis baby exercises: what helps and when to start.
What not to do
Avoid forcing your baby’s head into positions they resist. Sudden or forceful movements can cause discomfort. Prevent the baby from constantly assuming the preferred position while sleeping or playing. If a bump is palpable, consult a pediatric physiotherapist and start placing your baby on the non-preferred side when awake. The pediatric physiotherapist will often gently stretch the tight muscle.
Very occasionally, the muscle is found to be too tight, and it must be determined whether minor surgery is necessary. Most cases are manageable with simple adjustments. If a baby is unable to turn their head in one direction by around 4 to 6 weeks, or if the head tilt remains fixed without improvement, it may be helpful to seek evaluation. Gentle, consistent support is the most effective approach.
Common questions parents ask
What is torticollis in babies?
It is a head tilt caused by tight neck muscles.
Is torticollis serious?
Most cases are mild and improve with simple support.
When should I be concerned?
If movement remains limited or does not improve over time, at the age of 12 months.
Does torticollis go away?
Many babies improve with positioning and movement.
Is this the same as spasmodic torticollis?
No, that is a different condition seen in adults.
Written by Elly van der Grift
Elly van der Grift is the co-founder of Skully Care and a pediatric physiotherapist with over 30 years of experience. Her mission is to provide top care for babies with skull deformities. With her infectious enthusiasm, she shares simple, effective tips that can make a big difference for your baby. Working with Elly, you’ll feel confident and supported in your baby’s journey to better health.