What are the complications of pneumonia?

Untreated pneumonia can progress and spread into all the lung fields, making it difficult to breathe; if severe, patients may need assisted breathing in the hospital as pulmonologist Brian Gelbman, MD, explains.

Learn how to protect yourself from this serious illness, and how to support your recovery if you develop the infection.

Do you have a nagging cough that just won’t go away? It could be atypical, or “walking” pneumonia.

Throwing up and poor oral hygiene are two surprising ways to pick up a lung infection.

A look at what is happening inside the immune system, the blood, and the kidneys when a person has IgAN.

A lump isn't the only symptom. Learn the signs and risk factors for this common cancer.