Intellectual Disability often termed as mental retardation,is the condition in children, whose brain does not develop properly or function within the usual range. Intellectual disability can be; mild, moderate, severeor profound. Intellectual disability comprises of both low Intelligence Quotient (IQ) and difficulties adjusting to everyday life.

Intellectual disability can result in learning, speech, physical, and social disabilities. Severe cases of intellectual disability are identified at birth. However, milder or moderate forms of intellectual disability might not be identified until a child fails to meet the developmental goals. Almost all forms of mental retardation are diagnosed by the time a child reaches 18 years of age.

Symptoms are based on the level of disability. They can include:

Physical signs of intellectual disability may include short stature and malformed facial features. However these physical signs are not always present.