Chronic problems can even lead to dropping of the pedal bone and toe ulcers. The pressure of the bones on the corium cause hemorrhage and contusion and will become visible after about 2-4 months. Sole and white line hemorrhages originate from damage to corium with the blood being incorporated into the horn as it grows. These will become visible several weeks after the insult depending on the thickness of the sole and rate of growth. A sole abscess or white line abscess can occur if the hemorrhage becomes infected.
Sole ulcer is a continuous opening in the sole horn that exposes the corium.
The typical site is the rear middle part of the sole, which corresponds to the rear part of the pedal bone. The prognosis for sole ulcers depends on the damage to the horn producing tissue and the condition of the other claw. Toe ulcer occurs when the sole is worn too thin at the toe, or the toe drops inside the horn due to laminitis, or if the toe is accidentally trimmed too thin. Toe ulcers will always require an orthopedic block on the opposite claw. White line disease starts with fissures due to hemorrhage and poor quality horn formation.