Breeding Soundness Exams are performed when the mare is showing signs of estrus, otherwise known as “in heat”, to ensure the mare’s capability of becoming and maintaining a pregnancy. Initially we will examine the vulva and perineal areas, followed by ultrasound of the entire reproductive tract. A uterine culture will be collected and treatment initiated as needed. Although not routine, we may at times recommend a uterine biopsy. Ideally, the reproductive soundness exam will be performed one estrus cycle prior to the desired breeding cycle to allow for treatment if necessary.