You can check your neck for jugular vein by laying down with your head elevated at a 30 to 45 degree angle.
Then turn your head slightly to the side and look for a visible and pulsating vein that runs alongside your neck and it's most easily seen just above your collarbone.
If the jugular vein seems significantly bulging or distended it can indicate that there is a possible issue with your blood pressure or heart or cardiovascular system and you should see a doctor.
Your neck contains 2 jugular veins with one jugular vein on the right side of the neck and another jugular vein on the left side of your neck.
Your right jugular vein is often slightly bigger than the left jugular vein.
The right jugular vein is located at the root of your neck and slightly away from your common carotid artery.
Your right jugular vein also has a more direct route to your heart than your left jugular vein.
The left jugular vein often overlaps your common carotid artery and generally is smaller than the right jugular vein.
You also have anterior jugular veins which are the smallest jugular veins.
The anterior jugular veins are located on the front of your neck and just on either side of your windpipe.
When you have a vein that sticks out on the left side of your neck it means you have jugular vein distention which is when a large jugular vein in your neck bulges visibly.
When the jugular vein distention happens continuously then it's often a sign of serious or even life threatening heart problems and circulatory problems.
There are also carotid arteries on both sides of your neck and one carotid artery is on the right side of the neck and the other carotid artery is on the left side of the neck.
The carotid arteries are the main blood vessels which supply blood to your neck, face and brain.
And the right carotid artery originates from your brachiocephalic artery and the left common carotid artery originates from the aortic arch.
the common carotid arteries also split into your carotid artery and the external carotid artery at the carotid sinus in the neck.