The signs and symptoms of pneumonia can be mild or serious. Young children, older adults, and people who have serious health conditions are at risk for developing more serious pneumonia or life-threatening complications.
The signs and symptoms of pneumonia may include:
You may also have other symptoms, including a headache, muscle pain, fatigue (extreme tiredness), nausea (feeling sick to your stomach), vomiting, and diarrhea.
Older adults and people who have serious illnesses or weakened immune systems may not have typical symptoms. They may have a lower than normal temperature instead of a fever. Older adults who have pneumonia may feel weak or suddenly confused.
Sometimes babies don’t have typical symptoms either. They may vomit, have a fever, cough, or appear restless or tired and without energy. Babies may also show the following signs of breathing problems:
Often, people who have pneumonia can be successfully treated and do not have complications. Complications from pneumonia are more common in children, older adults, and people with other serious diseases.
This video describes complications that can happen from pneumonia. Read below for a more complete list of possible complications. Medical Animation Copyright © 2020 Nucleus Medical Media Inc. All rights reserved.
Complications of pneumonia that may be life-threatening include: