Which of the following describes the polarity in a microcurrent probe?

In microcurrent therapy, polarity plays a significant role in how the treatment interacts with the body's tissues. The correct choice indicates that the microcurrent probe can deliver both positive and negative charges, which is fundamental in the application of microcurrent technology.

Having both positive and negative polarities within one probe allows for a more versatile treatment approach. This dual-polarity capability facilitates the stimulation of cellular activity in various tissues, such as muscles and skin, thus enhancing the therapeutic effects. Depending on the specific treatment goal, practitioners can alternate between positive and negative charges to promote healing, reduce inflammation, or improve circulation.

In contrast, a probe that only utilizes one type of polarity would limit its effectiveness, as different applications require different charges based on the desired physiological response. Therefore, the ability to utilize both polarities in a single probe broadens the scope of treatment options available to the practitioner.