Intellectual Development Disorder (IDD) – Quick Guide

intellectual development disorder

What is intellectual development disorder?

Intellectual development disorder is a neurodevelopmental disease characterized by difficulties with mental activities. Learning, speaking, logical thinking, forming decisions, and planning are all challenging for kids with intellectual development disorder. They usually experience difficulty in school and may also have difficulties with peers and daily activities like bathing or dressing. They may seem to be acting out, but the underlying issue is that they don’t know what conduct is acceptable.

The term “intellectual development disorder” is a new one. Previously, these signs were referred to as “mental retardation.”

There are many different levels of severity for intellectual and developmental disorders, ranging from mild (where people may need some assistance but are usually independent to profound (where individuals require extensive assistance). When compared to a person of similar age, gender and socio-cultural origins, the level of impairment is usually assessed by a person’s “adaptive functioning,” which relates to skills acquired to assist the individual cope in their daily life, rather than an IQ test.

Intellectual developmental disorders are caused by genetic and physiological factors that occur before birth or throughout childhood. Symptoms of such a disability usually appear during childhood.

Check: Impulsive Control Disorder

What are the symptoms of intellectual development disorder?

A kid with IDD may score less than 70 on a standard IQ test. He will also have weaknesses in two or more particular areas of adaptive behavior, such as interpersonal skills, communication skills or daily living skills like dressing and using the toilet. Intellectual development problem typically occurs before birth, unless accounted for by a particular accident or toxic exposure before the age of 18.

IDD may affect one’s ability to operate in practical, social and intellectual situations.

Learning slowly is the most common symptom of intellectual development disorder. The following are examples of specific symptoms:

  • Crawling, walking and talking at a later age than their peers
  • Having trouble keeping up in school
  • Finding it difficult to recall information, solve issues or acquire and apply new knowledge
  • Speaking with people, interpreting body language, and recognizing social signals are all difficult.
  • Having difficulty to make and keep friends
  • Having difficulty with everyday activities such as basic self-care or money management
  • Having trouble organizing tasks or managing responsibilities

Read: Illness Anxiety Disorder


A kid must score less than 70 on an IQ test to be diagnosed with an intellectual development disorder. The purpose of the IQ test is to determine how well someone can think and learn.

At least two of these issues affect children with intellectual development disorders:

  • Providing and receiving information (communication skills)
  • Working with people and speaking with them (interpersonal skills)
  • Daily living skills like getting dressed and using the bathroom

In most cases, intellectual development problem begins before the kid is born. It may also be caused by certain accidents or being exposed to hazardous substances before reaching the age of 18.

Risk factors

The following are the risk factors for IDD:

  • Genetic factors
  • During pregnancy, the child’s brain did not develop as expected.
  • The mother of the kid drank or took drugs when she was pregnant.
  • Child’s birth issue
  • Bad brain injury
  • Certain illnesses
  • Seizures
  • The kid got no attention when he was a baby

Related: Pervasive Development Disorder

What are the risk factors for children?

Typically developing children learn more slowly than children with intellectual development disorders. It applies to a wide range of learning styles and stages of development. Children with this disorder often have difficulty sitting up, crawling, walking or talking. Communication skills are often lacking, as are the skills necessary to interpret and apply new information. It is often difficult for these children to keep up in school.

There may be problems with memory, social skills, and problem-solving skills in older children with intellectual development disorders. It is also possible that children with ADHD lack social inhibitions-not because they are “acting out” or “rebelling,” but because they have trouble understanding how to behave.

There are several risk factors that can contribute to autism spectrum disorders, including genetic syndromes, brain malformations, environmental influences such as alcohol and toxins, things to consider during labor and delivery, traumatic brain injury, infections, seizure disorders, and social deprivation.

Intellectual development disorder treatment

Intellectual development disorder is a condition that lasts a lifetime. It is treated via management and rehabilitation services (including special education programs) focused on assisting children with the condition in learning skills that will enable them to live healthy, happy and reasonably independent lives.

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