R

• Rabbit fever (See: Tularemia)
• Rabies
• Radiation sickness
• Ramsay Hunt syndrome
• Rapid gastric emptying (See: Dumping syndrome)
• Rapid heartbeat (See: Tachycardia)
• Rash, poison ivy (See: Poison ivy rash)
• Raynaud's disease
• Reactive airway disease
• Reactive arthritis
• Reactive attachment disorder
• Reading disability, specific (See: Dyslexia)
• Rebound headache (See: Rebound headaches)
• Rebound headaches
• Rectal cancer (See: Colon cancer)
• Rectal inflammation (See: Proctitis)
• Rectal itching (See: Anal itching)
• Rectal ulcer (See: Solitary rectal ulcer syndrome)
• Rectocele
• Rectovaginal fistula
• Recurrent breast cancer
• Red eye (See: Subconjunctival hemorrhage)
• Reflex sympathetic dystrophy syndrome (See: Complex regional pain syndrome)
• Reflux, bile (See: Bile reflux)
• Reflux, gastroesophageal (See: GERD)
• Reflux, vesicoureteral (See: Vesicoureteral reflux)
• Regurgitation, aortic valve (See: Aortic valve regurgitation)
• Regurgitation, mitral valve (See: Mitral valve regurgitation)
• Reiter's syndrome (See: Reactive arthritis)
• Renal cell carcinoma (See: Kidney cancer)
• Renal failure, acute (See: Acute kidney failure)
• Renal failure, chronic (See: Chronic kidney failure)
• Renal lithiasis (See: Kidney stones)
• Respiratory syncytial virus (See: Respiratory syncytial virus (RSV))
• Respiratory syncytial virus (RSV)
• Restless legs syndrome
• Retinal detachment
• Retinoblastoma
• Retinopathy, diabetic (See: Diabetic retinopathy)
• Retractile testicle
• Retrograde ejaculation
• Rett syndrome
• Reye's syndrome
• Rheumatic fever
• Rheumatoid arthritis
• Rheumatoid spondylitis (See: Ankylosing spondylitis)
• Rhinitis, allergic (See: Hay fever)
• Rhinitis, nonallergic (See: Nonallergic rhinitis)
• Rhinitis, vasomotor (See: Nonallergic rhinitis)
• Rib fracture (See: Broken ribs)
• Rickets
• Rift Valley fever (See: Viral hemorrhagic fevers)
• Ringing in the ear (See: Tinnitus)
• Ringworm (body)
• Ringworm (scalp)
• Ringworm of the foot (See: Athlete's foot)
• RLS (See: Restless legs syndrome)
• Road rage (See: Intermittent explosive disorder)
• Rocky Mountain spotted fever
• Rosacea
• Roseola
• Rotator cuff injury
• Rotavirus
• Round back (See: Kyphosis)
• RSV (See: Respiratory syncytial virus (RSV))
• Rubella
• Rubeola (See: Measles)
• Ruptured disk (See: Herniated disk)
• Ruptured eardrum
• Ruptured spleen