In Uroscan-1000, changes in bladder pressure are measured with increasing bladder volume, gradually. Doctor can detect if there be any deficiency during filling/storage phase of detrusor function. Abnormalities of bladder function especially relating to detrusor compliance, detrusor hyper-reflexia, unstable or increased bladder compliance are detected. Simultaneous recording of abdominal pressure and/or urethral spincter-EMG and urethral pressure is possible. We use H2O method, i.e. water is passed in the bladder through catheters by the Uroscan-1000 system. It is advantageous in physiological and other aspects such as a set up of duly sterile infusion equip30ent is used.