The detection of extremely small disturbances in mechanism of human body organs is a vital issue for the diagnosis of potential threats to human health. This paper is an attempt to present an application of fuzzy difference equations in predicting different qualities of a specific cardiovascular disturbance, such as, bigeminy. It is well-known that difference equations have been unable to predict all the possible forms of arrhythmia, leading to failure to detect numerous disturbances by cardiologists. However, fuzzy difference equations are promising in anticipating the nuances of each type of arrhythmia, contributing to efficient diagnosis of heart abnormalities.