Ur
- Urachal cancer
- Urachal cyst
- Urbach–Wiethe disease
- Urban–Rogers–Meyer syndrome
- Urban–Schosser–Spohn syndrome
- Urea cycle enzymopathies
- Uremia
- Urethral obstruction sequence
- Uridine monophosphate synthetase deficiency
- Urinary calculi
- Urinary tract neoplasm
- Urioste–Martinez–Frias syndrome
- Urocanase deficiency
- Urogenital adysplasia
- Urophathy distal obstructive polydactyly
- Urticaria pigmentosa
- Urticaria
- Urticaria-deafness-amyloidosis
Read more about this topic: List Of Diseases (U)