Can carotid bruits go away by itself?

Yes. A carotid bruit is due to turbulent flow from a blockage in the carotid artery. The natural course of carotid disease / atherosclerosis is progression over time. This is especially true if people still smoke. When the blockage in a carotid artery becomes near occlusive, the flow rate drops and the bruit typically goes away.

Related Questions

Am I too young to get carotid bruits? I am 18 years old.

No, but unusual. A carotid bruit is a sound heard when a stethoscope is placed over the artery in the neck. It is caused primarily by blood flow turbulence - like water in a brook running over rocks. Turbulent flow can be caused by atherosclerosis, aneurym, injury, and congenital abnormalities. It can also be heard by abnormalites in the proximal arteries and heart valves. It should always be evaluated. Read more...
Bruit yes, block no. 50% of bruits have no stenosis. However you need to be sure you don't have a congenital or aquired condition that could cause it. Read more...
No, but. An ultrasound of the carotids would be helpful for you to identify the cause of the bruits. A bruit means that there is turbulence in the artery. Read more...

Can carotid bruits cause severe headaches?

No. A carotid bruit is a sign of turbulence in the carotid artery. This not typically associated with headache. A bruit should be followed up with an ultrasound as it could be a sign of significant carotid stenosis. Read more...
Generally not. A bruit is the sound of irregular blood flow. They can lead to a stroke which may in fact result in a headache. You need further investigation. Read more...