Which prefix is associated with "below normal" conditions?

The prefix associated with "below normal" conditions is "hypo-". This prefix originates from the Greek word "hypo," which translates to "under" or "beneath." In medical terminology, it is used to describe conditions that are lower than the normal range or degree. For example, "hypoglycemia" refers to abnormally low blood sugar levels, indicating a condition that is below what is considered normal.

In contrast, the other prefixes do not convey this meaning. "Dys-" typically indicates difficulty or abnormality, "dia-" means through or across, and "epi-" signifies something that is upon or above. Understanding these prefixes helps in deciphering various medical terms and their implications, reinforcing the importance of correct terminology in medical settings.