In this issue of Veterinary Clinics: Small Animal Practice, guest editor Dr. Bruce W. Christensen brings his considerable expertise to the topic of Small Animal Theriogenology. Top experts in the field cover key topics such as progesterone analysis in canine breeding management; genetic screening in a canine breeding program; body condition and fertility in dogs; medical management of the pregnant bitch; elective Cesarean sections; an updated perspective for advising clients on spay-neuter of their dogs; and more.