Hoof Abscess (Subsolar Abscess)

Overview

## Overview A hoof abscess is a localized pocket of infection between the sensitive and insensitive layers of the hoof. It is the most common cause of sudden non-weight-bearing lameness. Bacteria enter through cracks, nail holes, or sole bruises. Once the abscess drains, comfort improves dramatically. ## Causes Bacterial invasion through defects in the hoof capsule. ## Diagnosis Severe lameness, bounding digital pulse, heat, and focal pain with hoof testers. Radiographs rule out fracture or deeper infection. ## Treatment Establish ventral drainage by paring a small hole, poultice, and bandage. Anti-inflammatories for pain. Antibiotics are not routinely required once drainage is achieved. Tetanus status should be current. ## Recovery and Prognosis Excellent once drained. Most horses are markedly more comfortable within 24 hours. ## Prevention Regular hoof care, clean environment, and prompt attention to sole bruises.

Signs & Symptoms

sudden severe often non-weight-bearing lameness; bounding digital pulse; heat in the hoof; focal hoof-tester pain; dramatic improvement once drained

Affected Structures

Frequently Asked Questions

What is Hoof Abscess (Subsolar Abscess) in horses?

## Overview A hoof abscess is a localized pocket of infection between the sensitive and insensitive layers of the hoof. It is the most common cause of sudden non-weight-bearing lameness. Bacteria enter through cracks, nail holes, or sole bruises. Once the abscess drains, comfort improves dramatically. ## Causes Bacterial invasion through defects in the hoof capsule. ## Diagnosis Severe lameness, bounding digital pulse, heat, and focal pain with hoof testers. Radiographs rule out fracture or deeper infection. ## Treatment Establish ventral drainage by paring a small hole, poultice, and bandage. Anti-inflammatories for pain. Antibiotics are not routinely required once drainage is achieved. Tetanus status should be current. ## Recovery and Prognosis Excellent once drained. Most horses are markedly more comfortable within 24 hours. ## Prevention Regular hoof care, clean environment, and prompt attention to sole bruises.

What are the signs of Hoof Abscess (Subsolar Abscess)?

sudden severe often non-weight-bearing lameness; bounding digital pulse; heat in the hoof; focal hoof-tester pain; dramatic improvement once drained