We have tried to explain how to perform FAST Ultrasound examination, required during emergency, it includes few views like Morison's view, Perisplenic view, pelvic view, thorax view, cardiac view etc. We are not very much sure of cardiac view so we have not shown that, rest we have tried to explain. All these view will help to look for hemoperitoneum, hemothorax, pneumothorax, pericaridal effusion etc. Full form of FAST is Focused Assessment With Sonography For Trauma.