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Mare reproductive challenges can range from endometritis to ovarian irregularities such as hemorrhagic anovulatory follicles, ovarian hematomas, and persistent corpora lutea, all of which can disrupt normal cycles and fertility. Older mares often face anatomical complications that increase contamination and impair conception. Hormonal tumors such as granulosa-theca cell tumors might spur erratic behaviors and cycle abnormalities, while pituitary pars intermedia dysfunction (PPID, formerly Cushing’s disease) can further dampen reproductive performance by causing abnormal cycles, anovulation, and recurring endometritis. Vigilant diagnostics—including ultrasound, hormone panels, and uterine evaluation—are essential in identifying and managing these issues efficiently. During this Ask TheHorse Live Q&A two experts answer your questions about common mare reproductive problems. This episode is sponsored by Equithrive. About the Experts: Carleigh Fedorka, PhD, assistant professor of equine reproductive