Endoscopy is an important tool for evaluation of horses experiencing respiratory problems, allowing us to visually evaluate the respiratory tract by passing a small, fiberoptic-lighted camera up the nose. We can examine the nasal passages, sinus openings, guttural pouches, larynx, trachea, and mainstem bronchi (where the trachea divides into the lungs).

Indications for endoscopy of the respiratory tract include:

  • Exercise intolerance or excessive noise when breathing
  • Nosebleed episodes (after work OR during rest)
  • Abnormal nasal discharge