Health Topics
Official websites use .gov
A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS
A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.
URL of this page: //medlineplus.gov/ency/encyclopedia_R.htm.htm
- Rabies
- Radial head fracture - aftercare
- Radial nerve dysfunction
- Radiation enteritis
- Radiation sickness
- Radiation therapy
- Radiation therapy - questions to ask your doctor
- Radiation therapy - skin care
- Radical prostatectomy
- Radical prostatectomy - discharge
- Radioactive iodine uptake
- Radiofrequency ablation for chronic pain
- Radioiodine therapy
- Radionuclide cisternogram
- Radionuclide cystogram
- Ramsay Hunt syndrome
- Rapid shallow breathing
- Rash - child under 2 years
- Rashes
- Rat-bite fever
- Raynaud phenomenon
- RBC count
- RBC indices
- RBC nuclear scan
- RBC urine test
- Reactive arthritis
- Reactive attachment disorder of infancy or early childhood
- Recognizing medical emergencies
- Recognizing teen depression
- Recombinant zoster (shingles) vaccine, RZV - what you need to know
- Recovering after stroke
- Rectal biopsy
- Rectal bleeding
- Rectal culture
- Rectal prolapse
- Rectal prolapse repair
- Red birthmarks
- Reflux nephropathy
- Refraction
- Refractive corneal surgery - discharge
- Refractive corneal surgery - what to ask your doctor
- Refrigerant poisoning
- Relapsing fever
- Relaxation techniques for stress
- Remembering tips
- Renal
- Renal and urological disorders
- Renal arteriography
- Renal cell carcinoma
- Renal papillary necrosis
- Renal pelvis or ureter cancer
- Renal perfusion scintiscan
- Renal scan
- Renal vein thrombosis
- Renal venogram
- Renin blood test
- Renovascular hypertension
- Repair of webbed fingers or toes
- Replantation of digits
- Reportable diseases
- Resources
- Respiratory
- Respiratory acidosis
- Respiratory alkalosis
- Respiratory syncytial virus (RSV)
- Respiratory syncytial virus (RSV) preventive antibody - what you need to know
- Respiratory viruses and face masks
- Responsible drinking
- Restless legs syndrome
- Restrictive cardiomyopathy
- Reticulocyte count
- Retina
- Retinal artery occlusion
- Retinal detachment
- Retinal detachment repair
- Retinal vein occlusion
- Retinitis pigmentosa
- Retinoblastoma
- Retinopathy of prematurity
- Retrograde cystography
- Retrograde ejaculation
- Retroperitoneal fibrosis
- Retroperitoneal inflammation
- Retropharyngeal abscess
- Retrosternal thyroid surgery
- Retroversion of the uterus
- Rett syndrome
- Returning to sports after a back injury
- Returning to work after cancer: know your rights
- Reverse total shoulder replacement
- Reverse total shoulder replacement - discharge
- Reye syndrome
- Reye syndrome - resources
- Rh incompatibility
- Rhabdomyolysis
- Rhabdomyosarcoma
- Rheumatic fever
- Rheumatoid arthritis
- Rheumatoid factor (RF)
- Rheumatoid lung disease
- Rheumatoid pneumoconiosis
- Rhinophyma
- Rhinoplasty
- Rhubarb leaves poisoning
- Rib fracture - aftercare
- Ribcage pain
- Riboflavin
- Rickets
- Rickettsialpox
- Right heart ventricular angiography
- Ringworm
- Ringworm of the body
- Ringworm of the scalp
- Risks of hip and knee replacement
- Risks of tobacco
- Risks of underage drinking
- Robotic surgery
- Rocky Mountain spotted fever
- Root canal
- Rosacea
- Roseola
- Rotator cuff - self-care
- Rotator cuff exercises
- Rotator cuff problems
- Rotator cuff repair
- Rotavirus antigen test
- Rotavirus vaccine - what you need to know
- RPR test
- RSV (respiratory syncytial virus) vaccine - what you need to know
- RSV antibody test
- Rubber cement poisoning
- Rubella
- Rubinstein-Taybi syndrome
- Rumination disorder
- Ruptured eardrum