Hello Dewey , I am Dr. Arun and will be helping you today.
This can be caused by many conditions. This is not likely due to diet. The most common cause is inflammation of the seminal vesicles or prostate gland (prostatitis). It can also be due to a tear in one of the fragile veins of the prostate gland. Most of the time it heals spontaneously, without any treatment and color should stop (which can be due to blood or infection) in a week or so. If this persists, other causes should be looked for.
A physical examination by a urologist (doctors who will deal it) can give clue of the site of infection or pathology. Digital rectal examination, in which physician, puts a finger in the rectum to palpate prostate can reveal tenderness in prostate or seminal vesicles. A urine culture or semen culture can identify the organisms and their sensitivity towards the antibiotics. This can sometimes be self remitting also, but most of the times an antibiotic course would be required. If culture tests are normal, a trans rectal ultrasound (TRUS) may be needed for ascertaining the cause. Prostate hyperplasia may be one of the possibility. Please feel free for your follow up questions.
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