What is generally treated with a comb electrode?

• A. Beard area
• B. Neck
• C. Hands
• D. The scalp

Answer: (D)

Comb electrodes are designed to treat the scalp because their multiple tines can contact the curved, hair-covered surface and help spread current evenly across a broad area. This shape lets the electrode pass through hair and maintain good contact along the scalp, making it ideal for scalp-oriented treatments. The other areas—beard area, neck, and hands—are typically addressed with different electrode designs that fit their contours and skin conditions better, whereas a comb’s design isn’t as practical for those regions.