worry
 

there was blood in my ejaculation it only hapend once!yesterday do i need to go to the doctor??

yes, I'd go to the doctor:

http://www.medicinenet.com/blood_in_semen/article.htm

I had the exact same thing happen to me 20 years ago but never told the doctor. It only happened once. I guess I would have followed up on the problem if it had showed later. I was 45 years old at the time if that will help any and I am still here . What I did have about 6 months later was a Kidney Stone show up. That could be what's happening in your case. I would also be worried if I had other symptoms . I will tell you this. If you go to a doctor be prepared to be put through all types of tests. I had a Cystoscopy done last year because of blood in my urine and of course my age. Everything turned out fine. If a doctor suggests you have this make sure they put you under. They might suggest you get it done at their office. I am telling you now, make them put you to sleep;). I am no doctor but sometimes little things like these happen and most of the time its nothing to worry about. Good luck. Tom

Sometimes your urethra can get tears in it. If you are sexualy active it could be the cause. I'd give it a day try again or just go to your doctor if your majorly concered.

This, definitely. There are so many things it could be that I wouldn't risk not going to the doctor.