PREPUCE

Constriction or stenosis of the preputial ring is a narrowing of the preputial opening that inhibits the extrusion of the penis. This disorder is typically congenital; however, it may also result from local trauma. Congenital incidence of preputial stenosis may demonstrate clinical signs at birth or not until several months of age. Clinical signs are usually consistent with phimosis. Affected horses typically urinate within the prepuce, and in long-standing cases urine scalding and ulceration of preputial skin can be present.¹ Manual dilatation may be possible in some individuals; however, surgical correction is most often indicated. Transection of the dorsal aspect of the muscular ring through a stab incision in the skin of the preputial ring can release the penis from the prepuce. Simple closure of the skin with monofilament absorbable suture is recommended.¹ Topical hygiene and application of antibiotic ointments can successfully address any skin ulcers present.

Descriptions of congenital aplasia and hypoplasia of the prepuce have been discussed (Figure 34-1). Associations with other deformities have not been determined. Affected individuals are described as appearing paraphimotic without sufficient preputial tissue to manually replace the penis into the prepuce. The penile tissue appears to have sensory and motor innervation, but insufficient prepuce for normal positioning. No treatment has been described.²

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