repetitive cuff inflation and deflation. Cuffless blood pressure measuring systems have been developed which help to solve these problems, and in this paper, two of these systems and their effectiveness and practicality are introduced. Steeringtype blood pressure monitoring systems and infrared blood pressure monitoring systems and their measurement principles are described, and their performance evaluation is also explained. The primary disadvantage of steering-type blood pressure monitoring systems is found to be accuracy; infrared blood pressure monitoring systems currently suffer from some time lag in reporting of results.