Developmental delay is when your child lags behind their peers in one or more areas of emotional, mental, or physical growth. 

There are many different types of developmental delays in infants and young children. They include problems with:

• Language or speech
• Vision
• Movement/ motor skills
• Social and emotional skills
• Thinking/ cognitive skills

If delay occurs in more than two above mentioned domains, it is called global developmental delay.

There are many reasons of development delay, which includes:

• Being born prematurely
• Lack of oxygen during delivery
• Reduced blood sugar immediately after birth 
• Genetic conditions like Down syndrome or muscular dystrophy
• Poor eyesight or hearing
• Malnutrition
• Defect in brain development 
• Congenital brain infection