What is the meaning of the prefix "dys" in medical terminology?

The prefix "dys" in medical terminology denotes difficulty or abnormal function. It is commonly used to indicate a condition where something is impaired or not working properly. For example, in terms such as "dysfunction," it suggests that there is an issue with normal functioning, while "dysphagia" refers to difficulty swallowing. This prefix highlights a problematic aspect of health or bodily functions, aligning well with the choice of "difficult." Understanding this prefix can aid in interpreting medical terms and their implications on health.