i have 2.5'' penis in erect stage, my girlfriend says i am 1.5'' small in size. is going for a penile enlargement surgery is good option? i have heard that after surgery only normal stage length increases, there is no increase in erected stage? i just need to reach 4'' size, is it possible? my age is 23years, height is 5'8'', weight is 54kg, i already have 6 penis surgeries in childhood due to wrong position of urinary hole..