The movement warning signs parents should not wait to raise

Developmental timetables vary, but asymmetry, unusual muscle tone or losing skills can signal a need for prompt medical advice.

Parents often worry when their baby moves differently from other children, but development in the first year of life is wide-ranging and rarely follows an exact timetable. The key question is usually not whether a skill appears on a precise date, but whether movement looks balanced, coordinated and gradually more controlled. According to the CDC’s milestone guidance, children typically reach physical abilities in a broad age range, and caregivers are encouraged to act early if they notice patterns that do not fit expected development.

In the first months, a baby should begin to lift the head, bring the hands together and show increasing control of movement. By around three months, many babies can support the upper body while lying on the stomach and keep the head in line with the body when on their backs. Over the following months, children usually start reaching for toys, rolling over, sitting with improving stability and later pulling to stand. The CDC notes that variation is normal, and that missed stages are less important than how the child uses both sides of the body and whether new skills are emerging over time.

That is why doctors advise parents to look beyond comparisons with other children. A baby who always turns the head to one side, arches backwards, keeps the fists clenched after the third month, avoids tummy time or seems unusually floppy or stiff should be discussed with a paediatrician. The same applies if a child uses only one hand well before the first birthday, shows uneven skin folds at the thighs or resists having the legs moved apart during nappy changes. The CDC’s “Learn the Signs. Act Early.” programme similarly urges families to raise concerns promptly when a child’s development seems off course.

A paediatrician is usually the first specialist to see. During routine health checks, the doctor reviews growth, reflexes, muscle tone and movement, comparing them with previous measurements and age-based expectations. If there are broader concerns, the child may be referred to a paediatric neurologist, especially when there is abnormal muscle tone, uneven reflexes, delays in several areas at once or a clear loss of abilities already gained. That kind of regression, doctors say, is one of the most important warning signs and should not be left until the next scheduled visit.

Physiotherapy can be especially helpful when the issue is postural asymmetry, a twisted neck position or difficulty with body control. The first assessment is often recommended at around three months of age, when movement patterns can be judged more reliably. At the first appointment, a therapist typically takes a detailed history, watches how the baby moves and then shows parents how to handle, carry, dress, position and play with the child in ways that support symmetrical development. In many cases, the most useful “therapy” happens at home through repeated everyday care.

Doctors also stress that hip screening should not be delayed. Developmental dysplasia of the hip often causes no obvious symptoms in the early months, which is why ultrasound screening is recommended for infants. The test is painless, does not use radiation and is commonly done in the first weeks of life, with further checks arranged depending on the findings and risk factors such as breech position in pregnancy or a family history of hip problems. The CDC’s infant guidance also underlines the importance of a safe, responsive environment, where parents watch for changes, trust their instincts and seek help early when something does not seem right.