Ua-UrUs-Uz
UUa-Ur
- UA
- Ubidecarenone
- Ubiquinone
- Ubiquitination
- Ubiquitous
- UBT
- UDP-glucuronosyltransferase
- UL
- Ulcer
- Ulceration
- Ulcerative colitis
- Umbilical cord
- Umbilicus
- Unconscious
- Unconsciousness, temporary
- Underventilation
- Undifferentiated cancer
- Undulant fever
- Undulate
- Unilateral
- United States Pharmacopeia
- Unsteadiness
- Unwell
- Upper leg
- Upper motor neuron
- Upper respiratory infection
- Upregulation
- Urate
- Urea
- Urea breath test (UBT)
- Uremia
- Ureter
- Urethra
- Urethral meatus, female
- Urethritis
- URG
- URI
- Uric acid
- Urinalysis
- Urinary
- Urinary incontinence
- Urinary tract
- Urinary tract infection
- Urinary urgency
- Urination, difficulty
- Urine
- Urine hemoglobin
- Urine pH
- Urogenital
- Urolithiasis
- Urticaria