Pulmonary Embolism (PE) is a serious condition that occurs when a blood clot blocks a blood vessel in the lungs. This blockage can prevent oxygen from reaching the bloodstream, leading to symptoms like shortness of breath, chest pain, and coughing up blood. PE often originates from clots that form in the legs, a condition known as deep vein thrombosis (DVT), and can be life-threatening if not treated promptly. Treatment for PE typically involves medications called anticoagulants, which help dissolve the clot and prevent new ones from forming. In severe cases, doctors may use procedures like thrombolysis to remove the clot directly. Early diagnosis and intervention are crucial for improving outcomes and reducing complications.