Textbook of Electrotherapy has been written in a systematic manner in a very simple approach for the students, professionals of physiotherapy, teachers, doctors, rehabilitation professionals, other paramedics and public in general. Recently, lots of advances have taken place in the field of electrotherapy. Utmost efforts have been made to cover all the necessary aspects of electrotherapy. All chapters have been written in a very simple and lucid manner. In ancient times, two modes of treatments—physical therapy and chemotherapy were available to mankind, i.e. treatment by physical means and treatment by chemical means. Physical means included the use of sun, earth, air, water, electricity, etc. This book deals with low, medium and high frequency currents, laser therapy, superficial heating modalities, ultrasonic therapy, cryotherapy, electromyography and biofeedback Chemical means included chemical agents which were therapeutically useful for clinical purposes. Electrotherapy is an ever-advancing field. Recent advances have made electrotherapy very interesting, lots of new modalities have been found effective for the treatment of various ailments. Utmost efforts have been made to make the textbook up-to-date. Starting from the history of electrotherapy to the recent advances, all the aspects have been covered in details. Glossary of terms, Suggested Reading and Index are also given at the end of this book.