urethral diverticulum

A pouch in the wall of the urethra (urethral diverticulum).

They can, however, enlarge to substantial proportions and be mistaken for urethral diverticulum or other structures.

The "bean" is often found in the urethral diverticulum, a pocket adjacent to the opening of the urethra, so that area must also be checked.

Accumulation of smegma in the equine preputial folds and the urethral fossa and urethral diverticulum can form large "beans" and promote the carriage of Taylorella equigenitalis, the causative agent of contagious equine metritis.