In the thermolysis modality, where is heat primarily generated?

In the thermolysis modality, heat is primarily generated at the needle's tip due to the point effect of the high-frequency current. This phenomenon occurs because the high-frequency electrical current is concentrated at the very tip of the needle, where the electrical resistance is highest. As the current travels through the tissue, it encounters resistance, which converts electrical energy into thermal energy, resulting in localized heating.

This localized heating is essential for the effective destruction of hair follicles during electrolysis. The heat generated at the tip of the needle effectively targets the follicular structure, effectively damaging the cells that promote hair growth. This precision allows for effective treatment while minimizing damage to surrounding tissues. The ability to generate heat specifically at the tip is a key characteristic of thermolysis and is crucial for its efficacy as a hair removal method.