A child may need specialist evaluation when a health problem is persistent, recurrent, complex or not responding as expected to initial treatment. A paediatrician may refer a child for concerns involving growth, development, breathing, digestion, the nervous system, heart, kidneys or other areas of health. Referral may also be appropriate when specialized testing or treatment is required. The decision depends on the child's symptoms, medical history, examination and response to treatment.

Routine paediatric visits help track a child's growth, development, nutrition, behaviour, hearing, vision and overall wellbeing. These visits also provide opportunities to discuss sleep, physical activity, nutrition, safety and age-appropriate developmental milestones. Vaccinations are an important part of preventive care and protect children against a range of serious infectious diseases. The recommended immunization schedule varies by country, age and individual circumstances, so parents should follow the vaccination schedule advised by their paediatrician and local health authorities.

Parents should seek medical advice when a child has symptoms that are severe, persistent, worsening or noticeably different from their usual behaviour or health. Concerning signs can include difficulty breathing, unusual sleepiness or difficulty waking, persistent vomiting, dehydration, seizures, severe pain, significant injury or a high or persistent fever, depending on the child's age. Changes in feeding, activity, responsiveness or behaviour can also be important, particularly in infants who cannot describe their symptoms. When in doubt, parents should contact their child's healthcare provider.

Many childhood illnesses can be managed by a general paediatrician, but specialist assessment may be needed when symptoms are persistent, severe, recurrent or difficult to diagnose. Examples may include poorly controlled asthma, recurrent infections, persistent digestive problems, significant allergies, seizures, developmental concerns or unexplained growth problems. A paediatrician may also refer a child when a condition affects a particular organ system or requires specialized investigations or treatment. Early referral can help establish a diagnosis and develop an appropriate care plan.

Growth is monitored through regular measurements of height or length, weight and, in younger children, head circumference. These measurements are plotted on standardized growth charts over time rather than judged from a single measurement. Paediatric visits also assess nutrition, feeding patterns, physical activity and age-appropriate developmental milestones such as language, movement, learning and social interaction. Tracking these changes over time helps identify patterns that may need further evaluation and provides an opportunity to address nutritional or developmental concerns early.

Before the appointment, note the child's main symptoms, when they started, how they have changed and anything that appears to make them better or worse. Bring a list of medicines, supplements and allergies, along with relevant medical records, vaccination information and previous test reports when available. For younger children, details about feeding, sleep, bowel habits and developmental milestones can be useful. Parents should also prepare questions about the diagnosis, recommended tests, treatment, expected recovery and any signs that should prompt further medical attention.