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Doubled urethra
Last reviewed: 04.07.2025
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[ Symptoms urethral doubling
A double urethra can be observed with a single or double penis (diphaly). Complete and incomplete duplication of the urethra occurs. With complete duplication, the accessory urethra branches off from the neck of the bladder and opens on the head or body of the penis. With incomplete duplication, the accessory urethra branches off from the main one, opening on the head, ventral or dorsal surface of the penis, or ending blindly.
Of the various forms of duplication, the most common are paraurethral ducts, which are a narrow blind canal running parallel to the urethra and opening into an independent opening in the head of the penis. The latter is diagnosed using fistulography. An additional urethra acquires clinical significance only when inflammation develops in it and urination is difficult.
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Treatment urethral doubling
Duplication of the urethra is treated by complete excision of the accessory urethra and paraurethral passages.