Method for examination of a surface temperature of a first body part and a second body part, each body part comprising a body surface, and each body surface is divided into a number of measuring zones M for examination wherein: during an initial period positioning of each body part in a system for examining a said each body part, wherein the system has a thermographic camera and a background screen (6,6'), whereby said each body part is positioned in a placement space (9.3;10.3) of the background screen such that the body surface of each body part under examination faces the thermographic camera, and the body parts which are going to be examined are located on the front side of the background screen, and other parts of the person are located on the rear side of the background screen, and digitally photographing essentially the entire body surface that is directed towards the thermographic camera both as a traditional image and as a thermographic image, the traditional image being a monochrome or color photography of the body surface of each body part, during the initial period, taking an initial digital traditional image of the body surfaces with the thermographic camera; during an exposure period exposing said each body part to a refrigerant during a predetermined exposure time, during a recovery period, repositioning each body part in the background screen of the system for examining the body part such that the body surface under examination faces the thermographic camera, and digitally photographing the body surface of each body part as a traditional image, and filming the body surface of each body part as a thermographic film or repetitively digitally photographing the body surface of each body part as thermographic images with the thermographic camera, keeping the background screen at a temperature which is different from the surface temperature of each body part under examination by at least two degrees Celsius, analysing the recovery process of the surface temperature in the measuring zones of the body surfaces of each body part, wherein the recovery process is based on the surface temperature within respective measuring zone measured by the thermographic camera during the initial period and the recovery period, and analysing deviations between the surface temperature in corresponding measuring zones of the body surfaces of each body parts, or deviations between the recovery process of the surface temperature in each measuring zone and the whole body surface of which the measuring zone is part of. during an initial period positioning of each body part in a system for examining a said each body part, wherein the system has a thermographic camera and a background screen (6,6'), whereby said each body part is positioned in a placement space (9.3;10.3) of the background screen such that the body surface of each body part under examination faces the thermographic camera, and the body parts which are going to be examined are located on the front side of the background screen, and other parts of the person are located on the rear side of the background screen, and digitally photographing essentially the entire body surface that is directed towards the thermographic camera both as a traditional image and as a thermographic image, the traditional image being a monochrome or color photography of the body surface of each body part, during the initial period, taking an initial digital traditional image of the body surfaces with the thermographic camera; during an exposure period exposing said each body part to a refrigerant during a predetermined exposure time, during a recovery period, repositioning each body part in the background screen of the system for examining the body part such that the body surface under examination faces the thermographic camera, and digitally photographing the body surface of each body part as a traditional image, and filming the body surface of each body part as a thermographic film or repetitively digitally photographing the body surface of each body part as thermographic images with the thermographic camera, keeping the background screen at a temperature which is different from the surface temperature of each body part under examination by at least two degrees Celsius, analysing the recovery process of the surface temperature in the measuring zones of the body surfaces of each body part, wherein the recovery process is based on the surface temperature within respective measuring zone measured by the thermographic camera during the initial period and the recovery period, and analysing deviations between the surface temperature in corresponding measuring zones of the body surfaces of each body parts, or deviations between the recovery process of the surface temperature in each measuring zone and the whole body surface of which the measuring zone is part of.