The mentally retarded child may also fail to adjust himself/herself to the different new circumstances. In the case of mild mental retardation, these indications may not be identified until school age. The nature of mental retardation varies extensively, from deeply decreased to insignificant or marginal retardation. Children with mental retardation also frequently show shortfalls in self-rule aids as well, counting areas such as decision making, problem solving, as well as objective setting.

Causes of Mental Retardation

Different causes of mental retardation can be fragmented into the following categories:

• Chromosomal abnormalities such as Down syndrome
• Environmental issues such as deprivation syndrome
• Nutritional Problems like Malnutrition
• Genetic abnormalities
• Infections
• Metabolic such as congenital hypothyroid
• Toxic such as lead or mercury poisoning
• Dietary issues
• Trauma (can be before and after birth)
• Severe head injury
• Tay-Sachs disease