I have swollen ankles and ones bruised but it doesn't hurt. should i just leave it alone?

No: Swollen ankles especially when bilateral (both ankles) is an indicator of a systemic problem. You require a good workup by your pcp or internist to ascertain the etiology of the swelling. These issues are usually simpler to diagnose and treat the earlier you get to them.

Chronic issues: This could be from the venous insufficiency - check with a vascular surgeon or a podiatrist for proper diagnosis.