Deletion syndromes are genetic disorders caused by the loss of a segment of DNA from a chromosome. This missing genetic material can lead to various physical and developmental issues, depending on which genes are affected. Common examples include Williams syndrome and Cri du Chat syndrome, each associated with specific symptoms and challenges. The severity and range of symptoms in deletion syndromes can vary widely among individuals. Some may experience growth delays, intellectual disabilities, or distinctive facial features, while others might have heart defects or other health problems. Early diagnosis and intervention can help manage symptoms and improve quality of life.