Delayed milestones in children: Signs every parent should watch out for
Most babies hold their head up by three months, sit independently by six to eight months, and take their first steps between 12 and 18 months. By 12 months, a child is usually babbling and saying a word or two.
What you need to know:
- A child's development is broader than what we can see at a glance. It includes how they think, communicate, relate to others, and manage emotions.
- When any of these areas follows an atypical path, the impact can be profound, and the window to act is shorter than most parents realize.
When parents think about whether their child is developing well, they usually look for obvious signs: walking, talking, gaining weight. These are natural and important questions, but they tell only part of the story.
A child's development is broader than what we can see at a glance. It includes how they think, communicate, relate to others, and manage emotions. When any of these areas follows an atypical path, the impact can be profound, and the window to act is shorter than most parents realize.
Most babies hold their head up by three months, sit independently by six to eight months, and take their first steps between 12 and 18 months. By 12 months, a child is usually babbling and saying a word or two. By two years, most children are putting two words together ("more milk," "daddy go"), making eye contact, smiling back, and turning when you call their name.
Development varies, but that range has limits. When a child's development consistently follows a different pattern, or when progress begins to reverse, closer attention is needed.
Parents often say, "Every child develops at their own pace." That contains truth, but it is sometimes used to justify delay when action is needed. If your child is not babbling by 12 months, has no words by 16 months, is not putting two words together by two years, or does not respond reliably to their name, do not wait these out. Seek a professional assessment now.
The same applies if a child loses skills they previously had. Regression is always a red flag regardless of how well the child appears otherwise. Seeking an opinion when you are concerned risks nothing: if development is on track, you gain reassurance. If support is needed, you catch it early.
Why early matters so much
The first three years of life are unlike any other period in development. The brain forms connections at extraordinary speed—most open to learning, most responsive to stimulation, and most able to reorganize through therapy and support. Children who access speech therapy, occupational therapy, physiotherapy, and developmental support during this period achieve substantially better outcomes than those who begin later. The cost of waiting is real; achieving the same outcomes later will require considerably more time, effort, and resources from both the child and their family.
Premature birth: a risk that deserves long-term attention
Babies born before 37 weeks face specific developmental challenges. Because their brain and vital organs are still maturing at birth, they are at higher risk of atypical development across language, movement, memory, attention, and learning.
Clinicians assessing a premature baby use "corrected age"—adjusting expectations based on when the baby was actually due, not when they were born. With the right support, many premature children thrive, but they need active, long-term monitoring to get there.
Atypical development does not always show up early, watch all the way to five.
Conditions such as autism spectrum disorder, ADHD, and specific learning difficulties may not become apparent until a child starts nursery or school, when sitting still, following instructions, making friends, reading, and managing emotions suddenly matter in new ways.
This is why developmental monitoring should continue systematically to age five. Five marks the beginning of formal schooling, when a child's ability to thrive depends on school readiness skills: sustaining attention, understanding instructions, communicating ideas, managing frustration, and engaging cooperatively. A child whose atypical development goes unrecognised before school entry arrives at that transition already at a disadvantage, when catching up becomes progressively harder.
A physically healthy child is not automatically a developmentally healthy child
A child can be growing well, eating well, and reaching every physical milestone on time, yet still have an atypical developmental profile in language, thinking, social connection, or emotional regulation. Physical health and developmental health are related but not the same. Every child deserves to have both assessed.
Children at higher risk—those born prematurely, following neonatal illness, with genetic or congenital conditions, or where caregivers have raised concerns—need repeated systematic assessment across the full developmental arc from birth to five. They need coordinated access to speech and language therapy, occupational therapy, physiotherapy, and specialist developmental review at the points when those interventions will have the greatest impact.
What to watch for beyond the obvious
Caregivers are often the first to sense their child's development is following a different path. Those instincts deserve to be taken seriously.
Also read: 'Don't hang your child's clothes near ours': The mothers fighting disability stigma every day
Watch for inconsistent or limited eye contact, or not turning when their name is called, not pointing to show you things, or difficulty understanding simple instructions, a very short attention span or limited interest in toys,frequent, intense outbursts that are difficult to settle, or strong resistance to routine changes, little or no pretend play by 18–24 months, and withdrawing from social interaction or not seeking comfort from familiar people
Several of these together, especially in a child with risk factors such as prematurity, a difficult birth, or a family history of neurodevelopmental conditions, should prompt a conversation with your paediatrician without delay.
Families need support too
When a child's developmental path is identified as atypical, the impact on families is significant and often silent. Parents frequently experience a grief-like process—shock, guilt, and anxiety are common. Caregiver wellbeing is directly connected to child outcomes. A parent who is emotionally sustained, well-informed, and engaged is a far more effective partner in their child's journey. Supporting families is not a secondary concern; it is core to good developmental care.
Stigma is a barrier we must dismantle together
In many Kenyan communities, a child's development is seen as a reflection of their parents. When development follows an atypical course, blame and silence often follow instead of support. Atypical development is a medical reality that calls for compassion and action, not judgement. A child whose brain develops differently has their own unique strengths and potential.
Healthcare providers, community leaders, schools, and families all have a role in replacing fear with understanding. Language matters too: describing a child as having "additional developmental needs" or "a different developmental pathway" helps families engage with care rather than retreat from it.
Dr Wamithi is assistant professor, Aga Khan University Medical College and Consultant Developmental Paediatrician, Aga Khan University Hospital
