• Home
  • Mayo Clinic Health Library

Mayo Clinic Health Library

#AÄBCDEFGHIJKLMNOÖPQRSTUÜVWXYZ

276 Search results starting with "S"

Disease

Progressive supranuclear palsy

Learn about this brain condition that affects your ability to walk, move your eyes, talk and eat.
Disease

Pulmonary atresia with intact ventricular septum

Also called PA/IVS, this rare congenital heart defect is diagnosed at or shortly after birth. Learn the symptoms and how it's treated.
Disease

Pulmonary atresia with ventricular septal defect

This congenital heart defect affects the valve between the heart and lungs and includes a hole in the heart. Learn the symptoms and how it's treated.
Disease

Pulmonary valve stenosis

When the valve between the heart and lungs is narrowed, blood flow slows. Know the symptoms of this type of valve disease and how it's treated.
Disease

Pyloric stenosis

In this condition, a valve between an infant's stomach and small intestine fails to open enough for food to pass through. Surgery is the treatment.
Disease

REM sleep behavior disorder

REM sleep behavior disorder is a sleep disorder in which you physically and vocally act out vivid, often unpleasant dreams during REM sleep.
Disease

Radiation sickness

Read about what happens when someone is exposed to high doses of radiation, and what you can do to prevent such exposure in an emergency.
Disease

Ramsay Hunt syndrome

A shingles outbreak can affect the facial nerve near one of your ears, potentially causing facial paralysis and hearing loss.
Disease

Renal artery stenosis

Learn about what happens when the arteries leading to the kidneys narrow, as well as treatments for this condition.
Disease

Respiratory syncytial virus (RSV)

This common illness affects the lungs. It can seem like a cold, but may be severe, especially in children. Know the symptoms and treatment.
Disease

Restless legs syndrome

The urge to move your legs can interrupt your sleep — making you drag through your day. These therapies calm the restlessness and improve sleep.
Disease

Rett syndrome

This rare genetic disorder affects the way the brain develops, causing a progressive inability to use muscles for eye and body movements and language.
Show more

© 2026 Mayo Foundation for Medical Education and Research. All rights reserved. Terms of Use

  • Home
  • Mayo Clinic Health Library