Can a pacemaker cause a blood clot?

A pacemaker itself does not directly cause blood clots, but the presence of the device can be associated with certain risk factors for clot formation. For instance, if the pacemaker leads irritate the blood vessels or if there's an underlying heart condition, it may increase the risk of thrombus development. Additionally, improper placement or infection can lead to complications that may contribute to clot formation. It's important for patients to follow their doctor's advice regarding anticoagulation therapy if necessary.