Diagnostics for the Chronically Infertile Mare

The diagnosis and treatment of chronically infertile mares is a complex process. Practitioners should utilize the available diagnostics, including cultures and cytology, along with endoscopy, to root out the myriad causes of this problem and increase
Please login

No account yet? Register


When examining the chronically infertile mare, it’s important to remember that the uterus is not an organ suspended in space–it must be viewed as one part in a complex system. Anything affecting the animal, no matter how remote, can have an effect on the reproductive system, according to Michelle LeBlanc, DVM, Dipl. ACT, a practitioner with Rood & Riddle Equine Hospital. LeBlanc presented on diagnostics and case management of these mares at the Florida Association of Equine Practitioners (FAEP) Promoting Excellence Symposium, held Sept. 27-29, 2007, at the Atlantis resort on Paradise Island, the Bahamas.

Diagnosing these mares begins with a physical exam of the entire animal.

"Your physical exam and taking a good history will give you the answer about 60% of the time," LeBlanc said. The veterinarian should consider factors such as the mare’s age, condition, and whether she’s sound. If that checks out, then scrutinize the reproductive system more closely.

If she notes anything abnormal during the vaginal exam of the infertile mare, LeBlanc advocates running both cytology (examination of the cells) and cultures. In a recent study, LeBlanc and Tom Riddle, DVM, looked at the diagnostics used on 970 Thoroughbred mares in Central Kentucky. Of these mares, 55% of those with reduced fertility would have remained undiagnosed without cytology to catch inflammation, and 17% would have remained undiagnosed without culture to catch infections

Create a free account with TheHorse.com to view this content.

TheHorse.com is home to thousands of free articles about horse health care. In order to access some of our exclusive free content, you must be signed into TheHorse.com.

Start your free account today!

Already have an account?
and continue reading.


Written by:

Erin Ryder is a former news editor of The Horse: Your Guide To Equine Health Care.

Related Articles

Stay on top of the most recent Horse Health news with

FREE weekly newsletters from TheHorse.com

Sponsored Content

Weekly Poll

sponsored by:

How do you prevent gastric ulcers in horses? Please check all that apply.
147 votes · 346 answers

Readers’ Most Popular

Sign In

Don’t have an account? Register for a FREE account here.

Need to update your account?

You need to be logged in to fill out this form

Create a free account with TheHorse.com!