How Serious Is a Clot on the Lung? Topic Guide

How Serious Is a Clot on the Lung? How Serious Is a Clot on the Lung?: A pulmonary embolism (PE) is a clot on the lung caused by a blocked blood vessel. A clot on the lung is serious because it can prevent blood from moving through the body, making it difficult to breathe, damaging the lungs, and can potentially cause death.