Which type of currents are typically avoided in electrotherapy due to safety concerns?

High voltage currents are typically avoided in electrotherapy due to safety concerns primarily because they can lead to discomfort or injury to the patient if not applied correctly. These currents can cause significant muscle contractions, pain, and in some cases, burns if the intensity is too high or the treatment is not properly monitored.

In therapeutic settings, the risk of adverse effects is a major consideration, which is why practitioners often utilize lower voltage or specific types of currents that provide effective treatment while minimizing the risk of harm. Additionally, equipment used in clinical environments is often designed around safer voltage levels that can safely stimulate muscles or tissues without the dangers associated with high voltages.

In contrast, low voltage currents, microcurrent therapy, and medium voltage currents are typically used in therapeutic applications because they are generally safer and more controlled, leading to beneficial effects without the higher risks associated with higher voltage applications.