An Investigation of Cutaneous Penile Blood Flow Using Laser Doppler Flowmetry

A capillary perfusion monitor was used to determine the flaccid and erect cutaneous penile blood flow in 19 healthy men. A mean value of 41.95 mV was observed from readings in the flaccid state, whereas the mean value in the erec tile state was 306.63 mV in readings at one minute of tumescence. Recordings were also obtained at two, three, and four minutes in 6 subjects, during which a plateau was reached.