Which statement is a correct indication for electrotherapy?

• A. Bell's palsy
• B. Hypertension
• C. Osteomyelitis
• D. Joint effusion

Answer: (A)

Electrical stimulation is used to activate or retrain muscles and support nerve function when there is neuromuscular weakness. In Bell’s palsy, the facial nerve is affected and facial muscles become weak or paralyzed; applying facial NMES can help maintain muscle tone, promote circulation, and assist with motor re-education as the nerve recovers. That makes it a correct indication. The other options don’t fit: hypertension is a systemic condition not addressed by electrotherapy; osteomyelitis involves an active bone infection and treatment near infection is contraindicated; a joint effusion is joint swelling that isn’t an indication for electrotherapy as a primary therapy.