Navicular disease is a common and distressing condition that affects the navicular bone in horses. It can cause lameness and significantly impact their performance and overall well-being. While there are no true synonyms for the term "navicular disease", it is often referred to as palmar heel pain, podotrochlosis, or simply navicular syndrome. These terms are used interchangeably to describe the same affliction. Regardless of the name used, it is crucial for horse owners and veterinarians to remain vigilant in monitoring and managing this condition. Early detection and appropriate treatment are vital to ensure horses' quality of life and reduce the impact of navicular disease.