Horse soles and frogs: when should you worry?

A horse's hooves are the foundation of its balance and locomotion, and a barometer of its overall health. Too often, changes in the tissues of the sole and frog go unnoticed until an infection spreads deep within the hoof, making treatment lengthy and complex. However, regular monitoring and preventative care can avoid many complications.

Anatomy: Understanding the sole and the frog

The sole and the frog are the two main visible structures on the underside of the horse's foot. Unlike the walls of the hoof (called the horny capsule), these tissues are more flexible, more dynamic, and in direct contact with the ground.

• The sole is the concave surface located between the frog and the hoof wall. It protects the internal structures of the foot, cushions shocks and helps to dissipate pressure.
• The frog , V-shaped, is located in the center of the sole. It plays a vital role in proprioception (perception of the ground), in the vascularization of the foot thanks to its support on the ground, and in the natural removal of waste through self-cleaning.

These two structures are composed of living keratin, which is more flexible and thinner than that of the cornea. Their natural porosity makes them sensitive to humidity, microbial aggression, and hygiene imbalances.

When and how do these tissues become infected?

An alteration of the sole or frog is often the entry point to many ailments: thrush, subsolar infection, abscess, thrush…

Risk factors:

• Stagnant moisture and dirty bedding
• Muddy ground
• Poor hoof trimming or imbalance
• Immune deficiency or impaired blood supply

Pathogens (anaerobic bacteria, fungi) settle in the lateral crypts of the frog, the fissures of the sole, or under the dead layers of keratin. There, they develop in an oxygen-poor environment that is difficult to reach with conventional care. The hoof may emit a foul odor , become painful, ooze, or even show signs of necrosis.

Don't wait for visible signs: the importance of prevention

The difficulty arises from the fact that the infection takes hold deep within the tissues well before clinical signs appear. When a soft, split, black frog or a crumbly sole is observed, the infection is often already advanced.

That's why it's crucial not to wait for serious signs before taking action. Regular maintenance with appropriate products helps maintain a healthy sole, a functional frog, and prevents the development of infections.

Two essential allies for preserving the tissues of the sole of the foot

1. Hoof Fluid – chestnut tannins

This natural treatment, based on plant tannins, creates a protective film on the sole and frog. Chestnut tannins have a powerful astringent and drying action. They tighten keratinized tissues, prevent bacterial and fungal growth, and strengthen the skin barrier. Directions for use : Apply to the entire sole and frog twice a week, on a clean and dry hoof .

2. Ozone Hoof Guard – ozonated oil

This purifying treatment, based on ozonated vegetable oil, is remarkably effective against anaerobic pathogens. The ozone, stabilized in the oil, penetrates deeply, oxygenates tissues, stimulates microcirculation, and destroys pathogens (bacteria, fungi). It is an excellent alternative to traditional antiseptics, antibacterials, and healing agents, while respecting the natural flora of the foot. For prevention: one or two applications per week. For treatment: daily application until lesions disappear or visible improvement is seen.

Conclusion: Acting early means a quick cure.

Sole and frog problems in horses are preventable with a simple yet rigorous care routine. By combining chestnut tannins for protection and ozonated oil for sanitizing , you create an environment hostile to infection and conducive to good hoof health. Don't wait for odors or pain to develop: a clean, healthy hoof means a happy horse!