R

• A to Z Symptom: Rash

  A rash is an area of irritated, bumpy, painful, or swollen skin. Most aren’t harmful or dangerous.

• A to Z Symptom: Rectal Bleeding

  Learn about some common causes of rectal bleeding, most of which aren’t serious.

• A to Z: Radial Head Subluxation

  Nursemaid’s elbow is a partial dislocation of the elbow joint that happens when a ligament slips out of place near the elbow.

• A to Z: Rash, Diaper

  Diaper rash is a very common condition that can cause a baby’s skin to become sore, red, and tender.

• A to Z: Rectal Prolapse

  Learn about conditions that affect the rectum, anus, and digestive system.

• A to Z: Renal Dysplasia

  Learn about potential complications of fetal development and conditions that affect the kidneys and urinary tract.

• A to Z: Resonance Disorder

  In this speech problem, problems in the structure, nerves, and muscles of the mouth and throat can change the quality of the voice. Read more.

• A to Z: Respiratory Failure

  Learn what happens when the lungs cannot properly bring oxygen into or remove carbon dioxide from the blood.

• A to Z: Respiratory Syncytial Virus

  Learn about RSV, a contagious infection that’s a major cause of respiratory illness in young children.

• A to Z: Retropharyngeal Abscess

  Retropharyngeal abscess is an area of infected, pus-filled tissue that forms in the deep tissues in the back of the throat.