Ra
RA
Rabies
Radiation enteritis
Radiation sickness
Ramsay Hunt syndrome
Rapid gastric emptying
Rapid heartbeat
See
Tachycardia
Rash, poison ivy
Raynaud's disease
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Re
Reactive arthritis
Reactive attachment disorder
Reading disability, specific
See
Dyslexia
Rebound headache
Rectal cancer
Rectal inflammation
See
Proctitis
Rectal itching
See
Anal itching
Rectal prolapse
Rectal ulcer
Rectovaginal fistula
Recurrent breast cancer
Recurrent oral ulcers
See
Canker sore
Red eye
Reflux, bile
See
Bile reflux
Reflux, vesicoureteral
Regurgitation, aortic valve
Regurgitation, mitral valve
Reiter's syndrome
REM sleep behavior disorder
Renal artery stenosis
Renal cancer
Renal failure, acute
Renal lithiasis
Residual limb pain
Respiratory syncytial virus (RSV)
Restless legs syndrome
Retinal detachment
Retinal diseases
Retinoblastoma
Retinopathy, diabetic
Retractile testicle
Retrograde ejaculation
Rett syndrome
Reye's syndrome
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Rh
Rhabdomyosarcoma
Rheumatic fever
Rheumatoid arthritis
Rhinitis, allergic
See
Hay fever
Rhinitis, nonallergic
Rhinitis, vasomotor
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Ri
Rib fracture
See
Broken ribs
Rickets
Rift Valley fever
Ringing in the ear
See
Tinnitus
Ringworm (body)
Ringworm (scalp)
Ringworm of the foot
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Ru
Rubella
Rubeola
See
Measles
Rumination syndrome
Runner's knee
Ruptured disk
Ruptured eardrum (perforated eardrum)
Ruptured spleen
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