In monophasic electrical stimulation for wound healing, applying negative polarity to the wound area yields which effect?

In monophasic electrical stimulation for wound healing, applying negative polarity to the wound area yields which effect?

• A. Bactericidal effect
• B. Promotes tissue granulation
• C. Increases healing rate
• D. Reduces infection risk

Answer: (A)

Applying negative polarity to the wound bed in monophasic electrical stimulation creates conditions that are hostile to bacteria. The cathodal approach drives alkaline conditions at the wound surface by generating hydroxide ions, and this alkaline microenvironment, along with the electrical field, disrupts bacterial membranes and metabolism. The result is a bactericidal effect that reduces the bacterial load, helping infection control and supporting the healing process. While polarity can influence healing through other mechanisms, the direct and most notable impact of negative polarity is to kill bacteria rather than to rapidly boost tissue granulation or overall healing rate on its own.

Applying negative polarity to the wound bed in monophasic electrical stimulation creates conditions that are hostile to bacteria. The cathodal approach drives alkaline conditions at the wound surface by generating hydroxide ions, and this alkaline microenvironment, along with the electrical field, disrupts bacterial membranes and metabolism. The result is a bactericidal effect that reduces the bacterial load, helping infection control and supporting the healing process. While polarity can influence healing through other mechanisms, the direct and most notable impact of negative polarity is to kill bacteria rather than to rapidly boost tissue granulation or overall healing rate on its own.