This document defines and discusses endometritis, a condition where the endometrium (lining of the uterus) becomes inflamed. It outlines predisposing factors like retained placenta or difficult birth. The principal microorganisms involved are Actinomyces pyogenes and Fusobacterium necrophorum. Clinical signs include a white vaginal discharge and failure to conceive. Diagnosis involves history, examination, culture and biopsy. Treatment consists of intrauterine and parenteral antibiotics, hormonal therapy with estradiol and oxytocin, and supportive care like cleaning and balanced diet. Management focuses on keeping the animal in a hygienic environment.