EN
Reproductive problems in the perinatal period have serious implications because they can be life threatening to mares or their foals and can influence future fertility. A number of abnormalities can occur during or after labor. This article discusses the appearance and course of the most important ones, including dystocia, retained placental membranes, uterine prolapse, uterine and vaginal trauma, retained liquids in the uterus and endometritis puerperalis. Special attention is given to the more serious potential consequences of these abnormalities, that, in addition to the possible death of the mare, include several pathologies which slow down the postpartum involution of the uterus and cause late mating: endometritis, metritis, general intoxication and sore feet. Because these are frequent complications, mares should be monitored after parturition to provide the correct therapy if necessary.