Which of the following is commonly achieved with high frequency treatments?

High frequency treatments primarily utilize electrical currents to create heat within the tissues, which is particularly effective for electrocoagulation. This process helps to coagulate tissue and can manage bleeding by sealing blood vessels, making it a valuable technique in electrology and certain dermatological procedures.

This method can be used for specific applications where precise tissue alteration is needed, such as in the removal of certain skin lesions or during surgical procedures, where minimizing bleeding is essential. The heat generated in high frequency treatments effectively denatures proteins in the tissue, leading to coagulation, which is crucial for these procedures.

While skin tightening and hydration can involve high frequency in some contexts, those effects are not the primary focus of the treatment; similarly, hair removal can be achieved through high frequency, but electrocoagulation remains the more accurate and specific answer in this context.