Snap, Crackle, Pop . . . Why Are My Knees Making These Noises?

The cracking of your knees may be alarming if you do not know the cause. There are many possibilities as to why your knees make noises when standing up, moving, or exercising.


knee noises

Some possibilities include:

  • Bursting of bubbles in the synovial fluid
  • Ligaments or tendons stretching over lumps and snapping back into place
  • Hypermobile meniscus


The buildup of bubbles in the synovial fluid of the knee joint is the most common cause of knee joint noises. The cracking or popping sound comes from the sudden collapse of the bubble during joint movements and typically isn’t painful.  Noisy knees are a common condition, and studies have found very little evidence of poor function or the need for knee surgery.

If you do not have pain associated with your knees, do not worry about it. If you have ongoing pain or functional limitations associated with the noise, contact Midwest Pain Solutions to schedule a no-cost consultation with Dr. Jackson to see where the problem lies.

In the meantime, it is important to stay active and keep moving as much as you can. Always remember – motion is lotion, and movement is free.


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