Read the video
A seventeen-month-old baby is approaching one and a half years of age. In these months it becomes clearer that weight gain and growth in length slow after one year of age. For example, a baby born weighing three kilograms reaches ten kilograms in the first year of life, then rises from ten to twelve kilograms in the second year.
Mothers may worry at this stage that their baby is not gaining weight or growing in length as quickly as before. This slowing is an entirely physiological occurrence. A seventeen-month-old is approximately 79–80 centimeters long and weighs an average of 11 kilograms. These figures can vary with family characteristics; the parents' height and weight affect the baby's development.
