A birth defect is a medical condition present at birth that affects the structure or function of a baby's body. There are several synonyms for the term "birth defect," including congenital anomaly, congenital malformation, or congenital disorder. These words are often used interchangeably to describe a wide range of conditions that affect a baby's development, ranging from minor physical abnormalities to severe health problems that require ongoing medical care. Some common examples of birth defects include heart defects, cleft lip and palate, Down syndrome, and spina bifida. While these conditions can be challenging for families to manage, early diagnosis and intervention can improve outcomes and quality of life for affected children.