If i have an enlarged prostate, how often should i ejaculate or have sex?

Not relevant...: It is not relevant; you may intercourse or ejaculate whenever or however you can tolerate and perform. But remember: Sex arousal - ejaculation will increase circulation through it and cause vigorous muscle contraction. Being "too" often in such may exaggerate the already existing urinary symptoms. So, let your body tell its own story and respect it, and take actions to adapt accordingly. Best wish