A blockage that occurs in one of the arteries located in the lung is called a pulmonary embolism. These embolisms are most often caused by blood clots that travel to the lung from elsewhere in the body. In most cases, the clots originate in the legs, but they can travel from other regions of the body as well. Blood clots in the lungs can cause a number of different symptoms ranging from mild, like feeling lightheaded, to more serious and sometimes even fatal consequences. Severe symptoms are more likely to manifest if the clot is large in size, there are multiple clots in the affected area, or if the person goes undiagnosed and/or untreated.
Information. A lung blood clot may cause damage to the lung if it is not found and treated in time. Decreased oxygen levels in the blood and restricted blood flow caused by the clots may affect and damage other organs in the body as well. It is important to discover the blockage early because it usually can be treated successfully, but it can be life-threatening if it progresses unattended. One third of people who are unaware, undiagnosed, and untreated lose their lives. However, if the pulmonary embolism is found in time and proper treatment is sought, permanent lung damage may be avoided.