How can a bodybuilder manage if he has hemorrihoids?, are there any exercises to avoid?is it ok to continue bodybuilding ?advise please

Yes, can continue: It is a matter of the extent and nature of the hemorrhoid problem. If there are large external hemorrhoids, with or without bleeding, any straining of the abdomen will make them worse. You should probably cut back on aggressive lifting during those times. If your hemorrhoids are severe enough to cause restriction on your fitness activities, you should see a general or colorectal surgeon.