Eponyms beginning with U
- Uehlinger's syndrome
- Uhl's anomaly
- Uhl's disease
- Uhl's syndrome
- Uhthoff's symptom
- Uhthoff’s sign
- Ullrich and Fremerey=Dohna syndrome
- Ullrich's syndrome
- Ullrich-Feichtiger syndrome
- Ullrich-Feichtiger syndrome
- Ullrich-Nielsen syndrome
- Ullrich-Noonan syndrome
- Ullrich-Scheie syndrome
- Ullrich-Turner syndrome
- Ulnofibular dysplasia, Reinhardt-Pfeiffer type
- Unna's bodies
- Unna's cells
- Unna's disease
- Unna's mark
- Unna's paste
- Unna's paste boot
- Unna's seborrhoeic eczema
- Unna's stain
- Unna's zinc boot
- Unna-Ducrey bacillus