Which tissues can electrical stimulation be used to aid tissue healing?

• A. Bone
• B. Skin
• C. Tendon
• D. All of the Above

Answer: (D)

Electrical stimulation helps healing by influencing the cellular environment: it can modulate ion flow, promote cell migration, boost blood flow, and enhance growth factor activity. These effects support repair across different tissues, not just one type.

For bone, electrical stimulation can stimulate osteoblast activity and accelerate callus formation and mineralization, which is especially helpful when healing is delayed or when there’s nonunion. For skin, it improves wound healing by guiding healing cells toward the wound, increasing perfusion, and promoting granulation tissue and collagen deposition. In tendons, it can enhance collagen synthesis and fiber alignment, reduce inflammatory mediators, and support repair after injury or surgery.

Because these mechanisms apply to bone, skin, and tendon, all of these tissues can benefit from electrical stimulation.