Diagnosaurus
- Ulcer, genital
- Ulcer, leg
- Ulcer, penile
- Ulcer and eschar
- Ulcers
- Ulcers, decubitus
- Ulcers, oral
- Unilateral edema
- Upper airway obstruction
- Upper extremity edema
- Upper extremity ischemia
- Upper GI bleeding
- Upper lobe lung disease
- Urethral discharge, men
- Urethral discharge, women
- Urgency, urinary
- Uric acid, foods affecting
- Uric acid increased, endogenous
- Urinary dribbling
- Urinary frequency
- Urinary hesitancy
- Urinary incontinence
- Urinary problems
- Urinary stream, decreased force
- Urinary tract obstruction
- Urinary urgency
- Urination, increased volume
- Urination, painful
- Urine, bloody
- Urine, cloudy
- Urine, dark
- Urine containing gas or air
- Urticaria, cold
- Urticaria (hives)
- U waves, EKG