System for a compression therapy, comprising - a compression means, - a pressure sensor, - a computer, characterized in that - the system comprises a pulse oximeter oxygen sensor, wherein measurement values from the pressure sensor and the oxygen sensor can be transferred to the computer, and - the computer comprises means for carrying out a method for monitoring the compression therapy, wherein the method comprises the following steps: i. receiving and checking a measurement value from the pressure sensor during the compression therapy, wherein a check is carried out as to whether the measurement value from the pressure sensor lies outside of a specified pressure range, and wherein preferably an alarm is output if the check yields that the measurement value from the pressure sensor lies outside of the specified pressure range, ii. receiving and checking a measurement value from the oxygen sensor during the compression therapy, wherein a check is carried out as to whether the measurement value from the oxygen sensor has dropped below a specified lower limit for an oxygen saturation, and wherein preferably an alarm is output if the check yields that the measurement value from the oxygen sensor has dropped below the specified lower limit for oxygen saturation. - a compression means, - a pressure sensor, - a computer, - the system comprises a pulse oximeter oxygen sensor, wherein measurement values from the pressure sensor and the oxygen sensor can be transferred to the computer, and - the computer comprises means for carrying out a method for monitoring the compression therapy, wherein the method comprises the following steps: i. receiving and checking a measurement value from the pressure sensor during the compression therapy, wherein a check is carried out as to whether the measurement value from the pressure sensor lies outside of a specified pressure range, and wherein preferably an alarm is output if the check yields that the measurement value from the pressure sensor lies outside of the specified pressure range, ii. receiving and checking a measurement value from the oxygen sensor during the compression therapy, wherein a check is carried out as to whether the measurement value from the oxygen sensor has dropped below a specified lower limit for an oxygen saturation, and wherein preferably an alarm is output if the check yields that the measurement value from the oxygen sensor has dropped below the specified lower limit for oxygen saturation. i. receiving and checking a measurement value from the pressure sensor during the compression therapy, wherein a check is carried out as to whether the measurement value from the pressure sensor lies outside of a specified pressure range, and wherein preferably an alarm is output if the check yields that the measurement value from the pressure sensor lies outside of the specified pressure range, wherein a check is carried out as to whether the measurement value from the pressure sensor lies outside of a specified pressure range, and wherein preferably an alarm is output if the check yields that the measurement value from the pressure sensor lies outside of the specified pressure range, ii. receiving and checking a measurement value from the oxygen sensor during the compression therapy, wherein a check is carried out as to whether the measurement value from the oxygen sensor has dropped below a specified lower limit for an oxygen saturation, and wherein preferably an alarm is output if the check yields that the measurement value from the oxygen sensor has dropped below the specified lower limit for oxygen saturation. wherein a check is carried out as to whether the measurement value from the oxygen sensor has dropped below a specified lower limit for an oxygen saturation, and wherein preferably an alarm is output if the check yields that the measurement value from the oxygen sensor has dropped below the specified lower limit for oxygen saturation.