Are two-a-days the key to growth? Small clinical series and case reports have used ~10 minutes twice daily  and reported modest improvements in penile length, girth, curvature, or tissue pliability over weeks to months in selected patients (for example in Peyronie’s or post-prostatectomy rehab).    Sample conservative clinic protocol    Assessment first:  medical exam and discussion with a urologist  to confirm VED is appropriate for you.    Warm up:  gentle warm shower or warm compress to the penis for a few minutes to promote circulation.    Session frequency:  twice daily  (morning + evening) on most days; a typical program used in studies is 10–15 minutes per session .    Technique basics:  assemble cylinder and pump per manufacturer instructions; create a gentle vacuum until erection is achieved (stop if painful); if using a constriction ring, place it only as directed and do not leave it on >30 minutes .    Pressure & comfort:  do not  over-pressurize to painful levels; fo...