Microwave ablation is a type of thermal ablation used to treat cancer in interventional radiology. To create tissue-heating effects, MWA uses electromagnetic waves in the microwave energy band (300 MHz to 300 GHz). Frictional heating is caused by the oscillation of polar molecules, which leads to tissue necrosis in solid tumours. It's typically utilised to treat and/or relieve the symptoms of solid tumours in patients who aren't surgical candidates.