Jugular Vein Distention (Neck Vein Bulge)
Bulging of the jugular vein in the neck indicates that there is increased venous pressure in the superior vena cava, which delivers blood to the heart. This occurs when the heart isn’t functioning properly.
Jugular vein distention can be caused by tricuspid valve stenosis, heart failure, pulmonary hypertension, and other issues involving the heart. A heart murmur is commonly present with these conditions.