Electrocardiogram examination method

To provide an electrocardiogram examination method, enabling an examinee to wear by oneself a measurement electrode for electrocardiogram measurement without requiring special knowledge, thereby eliminating the need for hospital visiting, enabling the examinee to take a bath in the middle, and utilizing at least two leads enabling advanced diagnosis. The present invention is an electrocardiogram examination method utilizing at least two leads, the method using clothing provided with at least three measurement electrodes or measurement electrode attachment parts and a connector part for fixing a measurement device, wherein the clothing has at least two different sizes, the clothing has a neckline surrounding the neck, and a first measurement electrode or measurement electrode attachment part is disposed within a circle having a radius of 5 cm, with the center of the circle being at the position 7.5-15 cm below the midpoint of a linear line segment connecting the right and left apexes of the neckline. The metho