- Rabies
- Radial Keratotomy
- Radiation Injuries
- Radiation Therapy
- Radical Neck Dissection
- Radioactive Implants
- Rape and Sexual Assault
- Rashes
- Rat-Bite Fever
- Raynaud's Disease
- Recompression Treatment
- Rectal Cancer
- Rectal Examination
- Rectal Polyps
- Rectal Prolapse
- Recurrent Miscarriage
- Red Blood Cell Indices
- Reflex Sympathetic Dystrophy
- Reflex Tests
- Reflexology
- Rehabilitation
- Reiki
- Reiter's Syndrome
- Relapsing Fever
- Relapsing Polychondritis
- Renal Artery Occlusion
- Renal Artery Stenosis
- Renal Tubular Acidosis
- Renal Vein Thrombosis
- Renovascular Hypertension
