My wife had a large Baker Cyst for over 10 years. The lump behind the knee gave her little problem. Last summer while visiting our son she was running across his lawn, early morning darkness, in a rain storm and tripped over a sprinkler head that had not retracted. The result was a big bump on knee, scraped shin, and sore ribs but the baker cyst broke from the impact and drained. Result no more Baker Cyst.
