There are three types of electrolysis:

Thermolysis
Also known as short-wave diathermy or electro-coagulation. A thin filament (also called a probe or needle), the width of the hair passes into the follicle and down to the part that produces the hair, where a carefully measured low amount of heat-producing electrical current is dispensed. This kills and detaches the hair, which is then lifted out of the follicle with tweezers. Electrolysis seeks to permanently destroy the active part of the follicle, rendering it unable to produce hairs. Thermolysis is the fastest method, making it ideal for clearing large or dense growth areas.
Galvanic
Also known as Electrolysis. The procedure is similar to Thermolysis, but the method produces a chemical called Lye, which fills the hair follicle and kills the hair within. The process takes up to thirty seconds per hair, so it isn’t often used for large areas of hair growth. This method is good for distorted hair follicles (from overplucking damage).
Blend
Blend is a combination of Short Wave Diathermy and Galvanic currents.
Blend utilises the heat of thermolysis to speed up the chemical reaction produced with galvanic. This cuts down individual hair treatment time to around 6-7 seconds.

An electrolysist needs a steady hand and precision to treat every hair accurately.

A well-trained practitioner will achieve fantastic, permanent results, making this a much sought-after treatment.

In the UK we call such treatment Electrolysis and practitioners are called Electrolysists.

In Canada and the US, the treatment is known as Electrology, and practitioners are called Electrologists.

In reality, these terms are used interchangeably without a problem.