Congenital disabilities occur due to three main reasons i.e.abnormal formation of tissues, abnormal forces on normal tissues, or destruction of normal tissues. Some of these defects may have a cascade effect and result in related anomalies or multiple anomalies (syndromes). | Congenital disabilities occur due to three main reasons i.e.abnormal formation of tissues, abnormal forces on normal tissues, or destruction of normal tissues. Some of these defects may have a cascade effect and result in related anomalies or multiple anomalies (syndromes). |