Veterinary Andrology and Reproductive Techniques

HEMORRHAGE FROM THE PREPUCE AND PENIS

• Following service, it may be due to tumors of the penis or to laceration of the penis or prepuce.
• In rare instance bleeding form the urethra may be observed in stallions and bulls.

• Several affected boars that had a small vascular outgrowth or polyp in the urethra that caused blood to be mixed with semen at ejaculation.
• In several bulls irregular-shaped calculi have lodged in the urethra and caused bleeding at the time of service but for a while only slight or moderate symptoms of difficult urination were observed .
• In young bulls there may occasionally be a small fistula in the glans penis extending into the corpus cavernosum.
• On erection a fine stream of blood comes through the fistula.
• Some veterinarians have described the presence on the glans penis of blue-red raised areas or ulcers that rupture and bleed.
• In artificial breeding, rubber bands from the artificial vagina may slip over the penis at the time the bull thrusts.
• These usually cause deep lacerations or even amputation of all or part of the glans penis if they are not removed promptly.
• Such and occurrence may be prevented by not using rubber bands on the artificial vagina, or by tying them with cord so they cannot slip off.
• Occasionally persons trimming preputial hairs on bulls will snip off the tip of the penis if vare is not taken to hold the penis caudal to the preputial orifice.
• Bloom reported that bleeding form the urethra in dogs is frequently a symptom of fracture of the os penis.
• Tumors should be removed. Sexual rest should be give most animals with hemorrhage from the penis and prepuce.
• In case of urinary calculi the prognosis is often hopeless for future breeding.
• When bleeding occurs from the corpus through fine fistula, sexual rest or surgery to close the defect are indicated.

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