Recto-vaginal Fistula

Also Known As

Opening between rectal and vaginal wall

Description

A recto-vaginal fistula is an opening or perforation through the wall, or septum, between the rectum and the vagina of a mare. Although the condition may occur as a congenital abnormality in a foal, it most often occurs as a result of an accidental perforation during the foaling process.

Symptoms

  • Appearance of fecal and urinal incontinence
  • Fecal matter in the horse's urine
  • Bleeding

Causes

A recto-vaginal fistula results when a perforation of the recto-vaginal septum occurs during foaling or as the result of a breeding injury or an accident.

A mal-presented or oversized foal may perforate the septum with a foot or cause it to tear. Manual manipulation during parturition or violent expulsive efforts by the mare may also cause a perforation.

In some cases, the condition may be a congenital abnormality that may or may not be correctable, depending on the physical state and condition of the animal.

Prevention

Care and attention during difficult deliveries to reposition the foal or prevent a foot from penetrating the septum may be possible. Make sure that anyone doing a rectal examination is well-qualified and that the mare is properly sedated or restrained.

Treatment

Surgical repair is usually needed to repair the perforation and restore normal functions. Vaginal-fecal contamination poses dangers to the health of the mare and a veterinarian may recommend antibiotics or other treatment to reduce the chances of infection.

An experienced veterinarian can determine the best surgical techniques to be used, based on the particular condition of the mare.

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