Physical Growth (1-3 Years)

Toddler Growth
The Toddler Stage: A Time of Steady Physical Development
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Weight Development

  • Average weight gain: 1.8 to 2.7 kg/year.
  • Average weight at 2 years: 12 kg.
  • Birth weight is quadrupled by 2.5 years (30 months).
Formula (>1 yr): Age(yrs) × 2 + 8 = Kg
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Height Development

  • Growth focuses on leg elongation rather than the trunk.
  • Annual Increase: 10 to 12.5 cm.
  • Adult height is roughly twice the 2-year-old height (86.6 cm).
Formula (>1 yr): Age(yrs) × 5 + 80 = cm

Head & Chest

  • Brain reaches 90% adult size by end of year 2.
  • Anterior fontanel closes between 12–18 months.
  • Chest circumference exceeds head size.

Teething

  • 24 Months: 16 primary teeth.
  • 30 Months: 20 primary teeth.

Vitals

  • Pulse: 80-130 beats/min (Avg: 110).
  • Respiration: 20-30 breaths/min.
  • Toddlers appear "pot-bellied" due to immature abdominal muscles.

Maturation of Systems

Toddler Health
Internal Maturation and Anatomical Vulnerabilities
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Anatomical Vulnerabilities

The ear and throat structures are short and straight, and lymphoid tissue remains large.

  • High risk for Otitis Media.
  • High risk for Tonsillitis.
  • High risk for Upper Respiratory Infections.
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Digestive Maturation

  • Processes are fairly complete; stomach capacity allows for 3 meals a day.
  • Gastric Acidity continues to increase, destroying bacteria.
  • Voluntary elimination control is achieved.

Motor Development Milestones

Toddler Playing
Mastering Gross and Fine Motor Skills through Play

15 to 18 Months

Gross Motor
  • Walks alone independently (15 mo).
  • Creeps upstairs on hands and knees.
  • Runs faster (often falls) & Jumps in place (18 mo).
  • Throws ball overhand without falling.
Fine Motor
  • Holds two cubes in one hand (15 mo).
  • Removes simple clothes like shoes (18 mo).
  • Holds cup with both hands & eats with spoon.

24 to 30 Months

Gross Motor
  • Goes up/down stairs, two feet per step (24 mo).
  • Kicks ball forward without overbalancing.
  • Jumps from chair, stands on one foot (30 mo).
Fine Motor
  • Opens door by turning doorknob (24 mo).
  • Aligns cubes like a train (24 mo).
  • Holds crayon with fingers rather than fist (30 mo).

Theories & Language

Toddler Talking
Developing Communication, Autonomy, and Identity
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Language Development

  • 15 Months: Says 4 to 6 words, asks for things by pointing.
  • 24-30 Months: Vocabulary of ~300 words, uses "I", 2-3 word phrases.
  • Can name one color and verbalize needs (toileting/food).
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Erikson & Freud

  • Erikson (Autonomy vs. Shame): Drive to perform tasks alone to gain control.
  • Gains confidence from self-feeding and walking.
  • Freud (Anal Stage): Developing physical autonomy via sphincter control.
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Piaget (Sensorimotor)

  • Ages 0 to 2 years.
  • Exploration occurs through sensory experiences and motor activities.
  • Parallel Play: Toddlers play alongside, not with, other children.

Common Behavioral Problems

Toddler Behavior
Navigating Tantrums, Negativism, and Regression

Temper Tantrums

  • Includes kicking, screaming, and breath-holding tactics.
  • Stems from a drive for autonomy and a lack of motor/cognitive skills.
  • Management: Consistent expectations, prioritize rules, and use reasonable consequences.

Negativism

  • Persistent negative response ("no") is a necessary assertion of self-control, not insolence.
  • Management: Reduce opportunities for a "no" answer.
  • Say "I am going to listen to your heart" instead of asking "Can I?" to prevent mistrust.

Regression

  • Retreating to past levels of behavior during stress to conserve psychic energy.
  • Common because stress hinders mastery of new tasks.
  • Management: Ignore regression while praising existing appropriate behavior.

Nutrition, Sleep & Dental Care

Toddler Eating
Fulfilling Daily Needs for Optimal Health
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Nutrition & Feeding

  • Needs 1300 calories/day; high protein (13g/day) needed for muscle/activity.
  • At ~18 months, physiologic anorexia occurs (decreased appetite).
  • Toddlers become picky, fussy eaters with strong preferences.
  • Require 3 meals & 2 snacks daily.
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Sleep & Toilet Training

  • Sleep averages 11 to 12 hours a day; prone to bedtime resistance.
  • Toilet training requires voluntary sphincter control, typically achieved between 18 and 24 months.
  • AAPD recommends an oral health exam by 6 months of age or within 6 months of the first tooth eruption.

Safety & Injuries

Toddler Safety
Curiosity Exceeds Awareness: Protecting the Toddler

🚗 Motor Vehicles

Primary cause of accidental death (ages 1-4).

  • Unrestrained children in the front seat are at highest risk.
  • Improper use of restraints causes many fatalities.

🌊 Drowning

Ages 12-36 months at highest risk.

  • Infant drowning most commonly occurs in the bathtub.
  • Swimming lessons are not sufficient protection alone.

🔥 Burns

  • Kitchen Hazards: Pulling pots with hot liquids, oil, and grease.
  • Use guards for radiators and fireplaces.
  • Sunburns are a year-round concern.

💊 Poisoning

  • Risk due to mouthing objects and opening "childproof" containers.
  • Can cause severe morbidity like esophageal strictures.

🩹 Falls

  • Playground injuries are common.
  • Use passive prevention (sand/wood chips) under equipment.

🌭 Choking

  • Difficulty with large foods (hot dogs) and hard foods (nuts).
  • Cannot discard pits or bones; careful food selection required.