Clinical reasoning is an essential competence of veterinary graduands. It is a complex competence with cognitive, metacognitive, social, and situational activities. The literature on clinical reasoning in veterinary medical education is relatively scarce or focused on theoretical rather than practical applications. In this review, we address the practicality of teaching clinical reasoning to veterinary learners utilizing a practical example of a cow with allergic rhinitis. Learners should be guided through all the domains of clinical reasoning, including concepts, data collection and analysis, take action, and reflection on an encounter. Each of these domains needs to be clearly but concisely explained and practiced repeatedly by learners throughout the veterinary curricula. The teaching of clinical reasoning should start as early in the curriculum as possible, preferably in the pre-clinical years, with a gradual scaffolding and building of complexity before work-based learning begins, with an increase in demanding for advanced clinical reasoning competence. The teaching of clinical reasoning is best performed in specialized sessions and continued as a horizontally and vertically integrated activity.