oa Wound Healing Southern Africa - Blisters in diabetes : podiatry case studies

Volume 1, Issue 2
  • ISSN : 1998-8885
  • E-ISSN: 2076-8893



Blisters initially form because the outer layer of the skin has become damaged. Fluid collects under the damaged layer of skin, initially cushioning the tissue underneath, protecting it from further damage and allowing it to heal. When the pressure of the fluid is too great it can create further damage to the underlying tissues. A blood blister usually forms when a small blood vessel close to the surface of the skin ruptures and blood leaks into a tear between the layers of skin. This can happen if the skin is crushed, pinched or squeezed very tightly. In the diabetic patient these are often seen in pressure areas.

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