Pressure ulcer detection systems and related methods are disclosed. Images of a patient supported by a person support apparatus are captured and analyzed to identify areas of the patient's skin which have a color different from surrounding areas of the patient's skin by a predetermined amount. A dielectric material attached with a positively charged electrode and a negatively charged electrode is configured to be in contact with the patient's skin. Differences in electric potential between areas of skin relative to surrounding areas of skin are identified.
