You can do this by masturbation, having your wife give you oral sex, or by actual intercourse. Pleasure yourself as long as you can, until JUST BEFORE YOU EJACULATE, THEN STOP, and let your erection subside. Do this once or twice before you want to ejaculate...can be over a period of a few hours too. This will increase the volume of your ejaculate. YES, Flomax seriously reduces the amount of ejaculate (to almost zero, in my case). Skipping one day will cause much more come on the following day (check with DR. first).
I am 65 and have had the same occurence for about 4 years but I decided it was not important. I am not attempting to impregnate my wife (smile) so the amount of semen/ejaculate does not concern me. Moreover, as long as my wife is happy and I feel good about my sexual performance its all good. Don't worry about it, or go see a urologist. I did read that use of drugs like Flomax for urinary issues will often decrease semen amount.
Good Luck,
Troytroy
could be the surgery, or it could be the aging process..I'm nearing 60 and notice that the volume isn't what it used to be nor not as, er..."explosive" as it used to be. I've never measured the amount, however.
Jim