D. Causes of Intellectual Disability

Intellectual Disability can be caused due to multiple factors:​​

- Environmental factors: Alcohol consumptions by the mother during pregnancy, exposure to toxins

- Genetic causes: Syndromes like Fragile X syndrome, Down syndrome, Prader-Willi syndrome, Williams syndrome, Neurofibromatosis, Klinefelter syndrome, Genetic ciliopathy, X-linked intellectual disability.

- Complications during pregnancy: Infections, malformation of the brain, intoxication.

- Complications at birth: Delayed birth cry, anoxia, trauma during delivery.

- Congenital conditions like hypothyroidism, Phenylketonuria, Cerebral palsy, Global developmental delay, Seizure disorder, etc can cause ID.