What does hypo- mean in medical terms?

hypo-

Meaning: deficient, below normal, under

Type: Prefix

A prefix goes at the very start of a word, before the root. On this page: what hypo- means, and real medical words that use it, each broken down into its parts.

Example words using hypo-

hypotension
hypo- (below normal) + tension (pressure) = abnormally low blood pressure
hypoglycemia
hypo- (deficient) + glyc (sugar) + emia (blood condition) = an abnormally low level of sugar in the blood
hypodermic
hypo- (under) + derm (skin) + ic (relating to) = relating to under the skin

Shortened forms

Charts and notes shorten long terms — see the Medical Abbreviations guide for the short forms you will meet in real records.

Please note: This section teaches the language of medicine — what word parts mean and how terms are built. It is an educational reference, not medical advice. For the meaning of a word in your own medical record, ask the clinician who wrote it.