Pain relief in osteoarthritis and rheumatoid arthritis: TENS.

Pain is a common symptom experienced by people with osteoarthritis and rheumatoid arthritis and impacts upon mobility and quality of life. This article reviews the limited evidence relating to TENS for pain relief which suggests that it is beneficial for some patients and does no harm. More research is needed to clarify optimal treatments regimes and its cost-effectiveness compared to conventional analgesia.