Historically, extensive dairy cow lameness is a relatively new problem with many causes. As with any complex problem, it takes time to understand its numerous components and develop the correct solution for each. Hoof overgrowth is one component of the lameness problem. Hoof trimming is the practical solution to this, but to be most effective it must be done correctly. This article, which originally appeared in the June 17, 2008 issue of Progressive Dairyman, discusses correct hoof trimming techniques.