Suppression of bladder instability by penile squeeze.

The effect of penile squeeze upon bladder instability was examined in 20 males and the results compared with those of anal dilatation. An uninhibited contraction of the bladder was successfully suppressed by squeezing the glans penis in 17 out of 20 patients and by dilating the anal sphincter in 20. It is concluded that this mechanical stimulus, when given to the glans penis of a normal man suffering from bladder instability, suppresses the detrusor contraction during the contracting phase but does not affect bladder tonus during the noncontracting phase.

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