Foot Ulcers

Laura Shin, D.P.M., Ph.D., David Armstrong, D.P.M., M.D., Ph.D., Lee J. Sanders, D.P.M.


  • Diabetic foot ulcer (DFU): A full-thickness wound, through the dermis, below the ankle on a weight-bearing or exposed surface in an individual with diabetes.[29][25]
  • These ulcerations can have a prolonged period to heal.
  • DFUs are categorized as being purely neuropathic, purely ischemic, or neuroischemic (mixed).
  • Most common sites: plantar surface of foot (metatarsal heads and midfoot), toes (dorsal interphalangeal joints or distal tip).
  • Pathogenesis: DFUs frequently caused by repetitive injury to an insensate or vascular compromised foot.

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Last updated: July 7, 2020