Capsula ungulae
The hoof capsule is the entire hard outer covering of the equine foot. It consists of the hoof wall, sole, frog, and bars. It encloses and protects the coffin bone, navicular bone, and associated soft tissues. The frog and digital cushion allow limited expansion of the caudal foot under load, which contributes to shock absorption and helps maintain circulation in the foot. The shape and balance of the capsule reflect the forces applied to the foot over time. Long toes, underrun heels, contracted heels, or flares distort the capsule and can both cause and result from internal foot problems. Regular, balanced farriery that keeps the capsule in a functional shape is essential for the health of the coffin joint and the podotrochlear (navicular) apparatus.
Capsule distortions are common and are managed primarily through farriery. Severe distortion can contribute to laminar stress, caudal heel pain, or joint overload. Radiographs help assess the relationship between the capsule and the internal bones.
Schedule regular farrier visits and keep the feet clean and dry. Sudden changes in capsule shape, cracks that involve the coronary band, or lameness associated with the foot need veterinary evaluation. Balanced trimming is more important than cosmetic appearance.
Capsule distortions are common and are managed primarily through farriery. Severe distortion can contribute to laminar stress, caudal heel pain, or joint overload. Radiographs help assess the relationship between the capsule and the internal bones.
Schedule regular farrier visits and keep the feet clean and dry. Sudden changes in capsule shape, cracks that involve the coronary band, or lameness associated with the foot need veterinary evaluation. Balanced trimming is more important than cosmetic appearance.
See the Hoof Capsule on our interactive 3D horse model. Open 3D Model