Roentgenological, radionuclide, ultrasound and thermographic methods were evaluated in 31 patients with acute and 85 with chronic cholecystitis. It was established that the succession of using of the above methods depends on the course of cholecystitis. In acute cholecystitis examination is begun with thermography and terminated by ultrasound. In chronic cholecystitis ultrasound is the first method to be followed by radionuclide methods. If necessary infusional cholegraphy and thermography are employed.