Medical terms beginning with U

The word names a shape of damage rather than a single disease, so its causes run from pressure to infection to cancer.

A description rather than a diagnosis, telling a reader that a surface has been lost and something is stopping it from closing.

One of the commonest reasons for an antibiotic prescription, and a diagnosis that rests on symptoms rather than on a urine test alone.

A rash that behaves unlike most others: each welt lasts hours, fades without a trace, and reappears somewhere else.