A research team funded by the National Institutes of Health (NIH) has identified a diagnostic aid that has the potential to accurately predict the recurrence of diabetic foot ulcers that appear to be fully healed. By measuring the skin’s barrier function through a process known as trans-epidermal water loss, or TEWL, scientists were able to determine which wounds were more likely to reopen. TEWL measurements are a major factor in burn care, where deep layers of the skin are often damaged. The findings suggest that full restoration of skin barrier function should be incorporated into existing wound treatment standards to ensure complete wound closure and to better identify patients at risk of wound recurrence.