Which condition is a contraindication to using a galvanic machine?

• A. Oily skin
• B. Dry skin
• C. Broken skin
• D. Sensitive skin

Answer: (C)

Using a galvanic machine relies on direct current to create controlled chemical changes at the skin through the electrodes. A healthy, intact skin surface is essential because the current and the cleansing or active solutions are designed to work with a closed barrier. When the skin is broken, that protective barrier is compromised, making the tissue more vulnerable to irritation, burns, and infection from the electrical current and from the chemical reactions occurring at the electrode. The risk of improper current flow and unpredictable reaction is higher on broken skin, and healing can be delayed.

Oily or dry skin aren’t outright disqualifications because galvanic therapy can actually help with oily skin through desincrustation and with dry skin through hydrating iontophoresis, though parameters may be adjusted. Sensitive skin might require gentler settings or avoidance if a reaction occurs, but it’s not an absolute contraindication in the same way as a broken skin condition.

So, broken skin is the condition that contraindicates using a galvanic machine.