The sphincter test catheter includes a catheter body, the proximal end of which forms a probe. Corresponding electric lines which are led to a recording unit run through the catheter body. The sphincter test catheter has at least one pressure sensor and a position sensor in combination with either a pH value sensor or an impedance sensor. The combination depends on which sphincter is to be monitored. The position sensor is combined with a pH value sensor in order to monitor the lower esophageal sphincter while the position sensor is combined with an impedance sensor when monitoring the urethral sphincter.
