What Are the Causes of Developmental Delay?

Human growth refers to the maturation process from fertilized eggs to adults. Growth and development are important characteristics that distinguish children from adults. Growth refers to the growth of children's various organs and systems, and corresponding measurement values can be used to indicate changes in their quantities; development refers to the differentiation and functional maturation of cells, tissues, and organs. Growth and development are closely related. Growth is the material basis of development. Changes in the amount of growth can reflect the maturity of body organs and systems to a certain extent.