During intercourse and when I ejaculate my semen is mixed with blood. This has been an ongoing problem for the past year. I have been to the doctors, specialists - done a urethra probe, xrays, cat scan, etc - all have been negative. My doctor told me that I may have a blood vessel in my penis that will rupture during intercourse, but I should have nothing to worry about. Its not a pleasant scene and have lost a great relationship because of this problem. I usually don't have a problem when I jerk off - its happened couple of times when I first started having this a year ago. Can anyone help? Or know of others that have the same problem?