4.1 Life events of normal children
Although every child follows his or her own individual developmental trajectory, most children achieve developmental milestones at predictable ages (see Chapter 2.2). These anticipated milestones provide an important yardstick against which to assess the individual child’s development. A departure from these expected developmental milestones, usually presenting as a developmental delay or behavioural problem, should prompt concerns that development is not proceeding normally.
• Organic causes of infant crying are uncommon but should be suspected if there is associated atopic disease (such as eczema), poor weight gain, frequent (more than three times per day) vomiting or blood/mucus in the infant’s bowel actions.
• In toddlers, low-priority misbehaviours (e.g. tantrums, whining) are best managed by ignoring or distraction.
• High-priority misbehaviours (e.g. hitting, kicking) are best managed by asking the child to stop and, if they do not, by putting them in ‘time out’.
• A child with unexplained school-based behaviour or learning problems usually needs a multidisciplinary assessment, including vision and hearing testing and, where possible, cognitive testing by an educational psychologist.
• Up to one in five adolescents will experience significant physical or emotional problems. Screening questionnaires that encompass home, school, recreational drug use, sexuality and suicide/depression issues can help to detect these problems.
Risk and resilience
• Child factors (e.g. prematurity or chronic illness versus good language or social skills)
• Family factors (e.g. parental mental illness versus stable income or family cohesion)
• Community factors (e.g. inadequate housing versus participation in community activities)
• Broader environmental influences (e.g. drought versus universally available health care).
Developmental stages
Early infancy (0–6 months)
• Crying. All infants cry. This is now understood to be a normal part of development. However, some infants are difficult to console and their crying causes major stress for parents. About 10% of infants cry for more than 3 hours per day, 3 or more days per week for 3 or more weeks. These infants are often labelled ‘colicky’. Underlying medical causes for crying are uncommon (< 5%) and include cow’s milk protein allergy, lactose intolerance and possibly gastro-oesophageal reflux disease. Most crying abates by age 3–4 months, and crying persisting after this raises the possibility of organic illness or concerns in the mother–baby relationship.
• Feeding. Most mothers want to breastfeed their infant but not all mothers find breastfeeding easy. Problems with incorrect attachment to the breast are common and may lead to difficult and painful breastfeeding and early weaning.
• Sleeping issues. Most infants establish a sleep pattern after 3 months of age, although they may not begin to sleep through the night until 6 months. Common parental complaints include difficulties settling their infant and frequent night waking.