In some cases, a Baker's cyst causes no pain, and you may not even notice it. If you do experience signs and symptoms, you may notice:
- Swelling behind your knee, and sometimes in your leg
- Knee pain
Your symptoms may be worse after you've been active, or even if you've just been standing for a long time.
When to see a doctor
If you're experiencing pain and swelling behind your knee, see your doctor to determine the cause. Though unlikely, a bulge behind your knee may be a sign of a more serious condition rather than a fluid-filled cyst.