This document provides information about short wave diathermy (SWD). It begins by defining SWD as a therapeutic treatment that uses high-frequency electromagnetic energy to generate heat and stimulate circulation to relieve pain and enhance healing. It then describes how SWD works, indicating it has a frequency of 10-100 MHz, with 27.12 MHz most commonly used, and can increase tissue temperatures at depths of 4-5 cm. The document also lists benefits of SWD such as controlled heating, increased blood flow and metabolism, and helping to dissolve clots. It notes conditions it can be used to treat and provides contraindications.