Pericardial fluid is the serous fluid secreted by the pericardium or the membranous covering of the heart into the pericardial cavity. Pericardial effusion or the accumulation of pericardial fluid around the heart might be due to bacterial or viral infections, cancers, and inflammatory disorders. The symptoms include unexplained chest pain, nausea, and shortness of breath, abdominal fullness and difficulty in swallowing. Excessively high accumulation causes a blue tinge to lips and skin, and can even lead to shocks and affect mental state. Aspiration of the pericardial fluid involves the drawing out of the pericardial fluid and testing it for signs of infection or cancer while it relieves the symptoms.