Abnormal nasal discharge and facial deformities do not always point to a sinus disease. A horse may suffer a fracture due to blunt-force trauma from swinging his head recklessly or getting kicked by another horse. Because the blood supply in the head is so good, a small fracture will usually heal very well on its own.
A veterinarian may do reconstruction if there is a depression or fragments of bone seen on an X-ray. The prognosis is usually promising. Kenneth E Sullins, DVM, MS, DACVS, a professor of surgery at Midwestern University’s College of Veterinarian Medicine, describes a case where a foal had been kicked and his face caved in. During surgery, Dr. Sullins elevated the bones and re-inflated the sinuses. The foal healed extremely well and went on to become a halter horse.