Pregnancy monitoring and parturition in dogs

Management of term pregnant dogs is a major and frequent clinical situation in small animal reproductive veterinary practices, and can be challenging. Whether a pregnancy is planned or unplanned, these cases require careful monitoring to prevent maternal distress and neonatal loss. Reproductive system evaluation of female dogs is useful for determination of ovulation during breeding management, pregnancy diagnosis, and for timing of cesarean surgery, among other clinical scenarios. Basic understanding of female dog’s reproductive physiology is mandatory to interpret relevant hormonal assays and other complementary diagnostics such as vaginal cytological evaluation and imaging (ultrasonography and radiography) for clinical decisions. This review covers physiology, diagnostics, and clinical outcomes relevant for pregnancy monitoring and parturition.