What does a healthy cow’s foot look like?

Understanding the structure of a healthy cow's foot is essential for effective foot trimming and lameness management.

Figure 1. The structure of the foot

1. Wall horn – The wall horn is equivalent to a human fingernail. It’s the strongest horn in the hoof and plays the most important role in bearing weight.
2. Sole horn – The sole horn forms the underside of the hoof and is similar to the foot pad on a dog or cat. It helps protect the structures beneath it.
3. White line – The white line is the junction between wall horn and sole horn. It’s made up of weaker horn.
4. Pedal bone – The pedal bone is the main bone within the hoof. It’s triangular in shape and is equivalent to the bone at the end of a human fingertip.
5. Laminar corium or 'quick' – The laminar corium, often called the ‘quick’, is an important tissue that supports the pedal bone within the hoof wall. It consists of specialised structures known as laminae.
6. Sole corium – The sole corium produces new sole horn. Damage to this tissue can lead to problems such as sole bruising, sole ulcers and white line haemorrhage.
7. Coronary band – The coronary band sits at the hairline at the top of the hoof wall. New wall horn grows down from this area, taking about a year to reach the toe end and five months at the heel.
8. Flexor tendon – The flexor tendon attaches to the pedal bone. Damage caused by deep infections can lead to toe distortion.
9. Digital cushion – The digital cushion is a dense fat pad under the heel. Along with the heel, it helps dissipate forces acting on the foot and supports the pedal bone.