CBSE Class 9 Answered

A congenital disorder is a medical condition that is present at birth. A congenital disorder can be recognized before birth (prenatally), at birth, or many years later. Congenital disorders can be a result of genetic abnormalities, the intrauterine environment, or unknown factors. A congenital condition can arise from the genetic make-up of the fertilized egg or be acquired at any time during fetal development. The causes of many congenital disorders are not known.

Acquired diseases are acquired during the lifetime of an individual and are not present from birth. They are usually caused by disease causing agents or due to the lifestyle of an individual.