Can infection in tooth cause swollen ankle

It can enter the blood stream, infections have been known to collect on heart valves too.

Yes, current research has shown there is a direct connection that should convince everyone that it's important to keep up with good oral habits. Check out the whole new group on the subject, the American Academy for Oral Systemic Health (www.AAOSH.org) - it just means doctors and dentists are coordinating efforts, and dentists can sometimes predict whole-body health problems based on what they see in your mouth.