A sphygmomanometer includes a cuff block (1) having a cuff for restricting flow of blood and a base block (2), to which the cuff block is pivotably connected, having an elbow support (44) for supporting an elbow of a user who inserts his/her arm (9) into the cuff block. The sphygmomanometer further includes a compensating unit to compensate a change of distance from one end of the cuff block to the elbow support, which is caused by a pivotal movement of the cuff block with respect to the base block.
