Understanding Infantilism (.org)
Physical Milestones 0-1, 1-2, 2-3, 3-4, 4-5, 5-6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 18+
Sensory/Cognitive Milestones Ages 0-1, 1-2, 2-3, 3-4, 4-5, 5-6
Linguistic Milestones Ages 0-1, 1-2, 2-3, 3-4, 4-5, 5-6
Social Behavioral Milestones Ages 0-1, 1-2, 2-3, 3-4, 4-5, 5-6

DEVELOPMENTAL MILESTONE CHART FOR CHILDREN

- By Jennifer

Physical, Sensory, Cognitive, Linguistic, & Behavioral Milestones From Birth to Eighteen Years

From Birth to Age One



Grasp reflex: The infant will try to grasp a finger placed in the infant's open palm. Attempting to remove the finger causes the grip to tighten.

Crawling reflex: The infant will make crawling motions when placed on abdomen.

Moro reflex: If the infant's weight is removed by lifting it's body slightly and releasing suddenly. The infant should have a "startled" look, and fling it's arms out sideways with the palms up and the thumbs flexed.

Tonic reflex or fencer's position: The tonic neck reflex is elicited when the head of a relaxed child, lying supine, is rotated to the side. The arm toward which the infant is facing extends straight away from the body with the hand partially open while the arm on the side away from the face is flexed and the fist is clenched tightly. Reversing the direction in which the face is turned reverses the position.

Rooting reflex: If the cheek is stroked the infant will turn toward the side that was stroked and begin to make sucking motions with its mouth.

Landau reflex: when an infant is held in the prone position, the entire body forms a convex upward arc; gentle pressure on the head or gravity flexes the neck and hip, reversing the arc.

Parachute reflex: If the child is held upright and the body is rotated quickly face forward as if falling. The arms are reflexively extended as if to break a fall to protect self from falling.

Plantar reflex: If the sole of the foot is irritated with an object, the infant's toes will contract

Neck righting reflex: The infant will rotate the truck in the direction in which the head of the supine infant is turned

Between One and Two



Babinski sign: when the lateral aspect of the sole of the relaxed foot is stroked, the great toe is flexed

Between Two and Three

Between Three and Four

Between Four and Five

Between Five and Six

By Age Seven

By Age Eight

By Age Nine

By Age Ten

By Age Eleven

By Age Twelve

By Age Thirteen

By Age Fourteen

By Age Fifteen

By Age Sixteen

By Age Seventeen

By Age Eighteen

Above Age Eighteen

  1. Note that the weight curve is the 50th percentile for all groups


Note: Between birth and 1 years the child is called an infant, between 1 and 3 years the child is called a toddler, between 3 and 5 years the child is called a preschooler, between 6 and 12 years the child is referred to as a schoolage child, and between 12-18 years the child is called an adolescent.
Email BitterGrey[mail] Level: Advanced | Status: Finished | Last Update: 15 May 2001


Do you have Questions, Tips, Suggestions, or other feedback?