The bulbo-urethral glands are two small, reddish-yellow racemose glands, about the size of a pea. They are situated behind and below the membranous urethra, one on each side of the median line, in the substance of the compressor urethrae (sphincter urethrae) muscle. They are overlapped by the posterior end of the bulb, from which they are separated by the anterior layer of the triangular ligament (urogenital diaphragm). The duct of each gland is two and a half to four centimeters (one to one and a half inches) in length. It pierces the superficial layer of the urogenital diaphragm, runs forward in the bulb along the floor of the bulbous urethra, and then obliquely enters the bulbous urethra at its floor. Sometimes these glands are so small as to escape detection. Their secretion is accessory to the seminal fluid.

Glandula bulbo-urethralis

Glandula bulbourethralis

Glande bulbourétrale

Bulbo-urethrale Drüse