Ask the doctor: Is bundle branch block serious?
Q. I had an electrocardiogram in preparation for minor surgery. My doctor told me it showed that I have right bundle branch block. Neither he nor my cardiologist are worried about it, but I am. Is this serious?
A. Much of the time, bundle branch block is not serious. If your doctors are telling you it's okay, I would trust them.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
New subscriptions to Harvard Health Online are temporarily unavailable. Click the button below to learn about our other subscription offers.