Why do my feet pop and crack when I walk?

Answer:
Theres a bunch of reasons why, A few years ago my feet started cracking when I walked, and they haven't really stopped since, although they crack less these days. As long as the cracks don't hurt at all, you're fine, but if they do you should see a doctor.

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You are fat...

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When was the last time you washed them? Might just be as simple as a crud build up.

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old age

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The gas-containing synovial fluid in your joints of your foot and ankle form bubbles which produce the popping/cracking noise when the joint capsule is stretched. This can be partciularly pronounced in people with chronic inflammatory diseases (e.g., arthritis, Lyme disease, etc).

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