Interferential Therapy (IFT) is a non-invasive electrotherapy technique commonly used in physiotherapy to relieve pain, reduce inflammation, and promote healing. It works by delivering low-frequency electrical currents through the skin using electrode pads placed around the affected area. These currents intersect or “interfere” within the body tissues, stimulating nerves and deep tissues without causing discomfort. IFT enhances blood circulation, reduces muscle spasms, and accelerates tissue repair, making it effective for conditions like arthritis, back pain, sports injuries, and post-surgical recovery. Safe and painless, it is widely preferred for managing both acute and chronic pain in clinical physiotherapy settings.