What is the primary reason for cleaning the frog of a horse's hoof?

The primary reason for cleaning the frog of a horse's hoof is to prevent the development of thrush. The frog is a critical part of the hoof that acts as a cushion and plays an essential role in the hoof's function. It is also a prime location where debris, moisture, and bacteria can accumulate. If not properly cleaned, this buildup can lead to thrush, a painful bacterial infection that affects the frog and can result in serious discomfort for the horse. Regular cleaning helps to maintain hoof health, ensuring that the frog remains clean and dry, which ultimately supports the overall integrity of the hoof and prevents complications such as thrush.