Plantar fasciosis is a common cause of heel pain, but another problem that can cause heel pain is bursitis, specifically, infracalcaneal bursitis—irritation of the fluid-filled sac that sits directly under the heel bone. With heel bursitis, pain tends to increase with weight-bearing activity, as opposed to plantar fasciosis, a condition in which pain usually is greatest upon waking in the morning. In this video, Dr. Ray McClanahan, a sports podiatrist...
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