Fistulous withers is a chronic inflammatory condition involving the withers region, characterized by deep abscessation, draining tracts, and fibrosis. It can result from trauma (such as ill-fitting saddles), infection (including *Brucella abortus*), or other causes of persistent inflammation in the supraspinous bursa and surrounding tissues. ## What it is The withers area contains the supraspinous bursa and ligamentous attachments that are prone to trauma from poor saddle fit or direct injury. When infection or chronic irritation sets in, it can lead to deep abscesses that form draining tracts. In infectious cases (especially brucellosis), the condition can become systemic. The area is difficult to treat because of poor drainage and constant movement from the shoulder and neck. ## Signs and symptoms - Swelling, heat, and pain over the withers - Draining tracts with purulent or serosanguinous discharge - Extreme sensitivity to touch or pressure in the withers region - Severe girthiness and resistance to saddling - Systemic illness (fever, lethargy) in infectious cases - Chronic fibrosis and scarring in long-standing cases ## Causes and risk factors Fistulous withers is often caused by trauma from ill-fitting saddles, direct injury, or foreign bodies. Infectious causes, particularly *Brucella abortus*, are significant in some regions. Risk factors include poor saddle fit, horses that are heavily worked with inadequate padding, and exposure to infected cattle or environments where brucellosis is present. ## How it is diagnosed Diagnosis is based on clinical signs and imaging. Radiographs or ultrasound help evaluate the extent of bone involvement and draining tracts. Culture and sensitivity testing of discharge is important to identify the causative organism. In regions where brucellosis is a concern, serology may be performed. ## Treatment and management Treatment is often prolonged and challenging. It typically involves surgical debridement of necrotic tissue and draining tracts, long-term antibiotic therapy based on culture results, and anti-inflammatory medication. In brucellosis cases, specific protocols and regulatory considerations apply. Supportive care includes rest, proper wound management, and addressing any underlying saddle fit issues. Recurrence is common if the underlying cause is not resolved. ## When to call the vet Contact your veterinarian promptly if you notice swelling, heat, pain, or draining tracts over the withers. Early intervention improves the chance of successful resolution and reduces the risk of chronic scarring or systemic spread. ## Prevention Prevention centers on proper saddle fit and padding, avoiding trauma to the withers area, and maintaining good biosecurity in regions where brucellosis is present. Regular saddle checks and prompt treatment of any withers wounds or swelling are important. ## Frequently asked questions **Is fistulous withers contagious?** The traumatic form is not contagious. Infectious cases caused by *Brucella* can have public health and regulatory implications but are not directly transmitted horse-to-horse in most situations. **Can fistulous withers be cured?** Many cases can be resolved with aggressive surgical and medical treatment, but chronic or poorly managed cases often recur or leave significant scarring. **How long does treatment take?** Treatment is often prolonged, frequently requiring weeks to months of antibiotics and wound care, and sometimes multiple surgical interventions. This information is for educational purposes only. Always consult with a licensed veterinarian for diagnosis and treatment of your horse.
Swelling, heat, and pain over the withers; draining tracts with purulent or serosanguinous discharge; extreme sensitivity to touch or pressure in the withers region; severe girthiness and resistance to saddling; systemic illness (fever, lethargy) in infectious cases; chronic fibrosis and scarring in long-standing cases
Fistulous withers is a chronic inflammatory condition involving the withers region, characterized by deep abscessation, draining tracts, and fibrosis. It can result from trauma (such as ill-fitting saddles), infection (including *Brucella abortus*), or other causes of persistent inflammation in the supraspinous bursa and surrounding tissues. ## What it is The withers area contains the supraspinous bursa and ligamentous attachments that are prone to trauma from poor saddle fit or direct injury. When infection or chronic irritation sets in, it can lead to deep abscesses that form draining tracts. In infectious cases (especially brucellosis), the condition can become systemic. The area is difficult to treat because of poor drainage and constant movement from the shoulder and neck. ## Signs and symptoms - Swelling, heat, and pain over the withers - Draining tracts with purulent or serosanguinous discharge - Extreme sensitivity to touch or pressure in the withers region - Severe girthiness and resistance to saddling - Systemic illness (fever, lethargy) in infectious cases - Chronic fibrosis and scarring in long-standing cases ## Causes and risk factors Fistulous withers is often caused by trauma from ill-fitting saddles, direct injury, or foreign bodies. Infectious causes, particularly *Brucella abortus*, are significant in some regions. Risk factors include poor saddle fit, horses that are heavily worked with inadequate padding, and exposure to infected cattle or environments where brucellosis is present. ## How it is diagnosed Diagnosis is based on clinical signs and imaging. Radiographs or ultrasound help evaluate the extent of bone involvement and draining tracts. Culture and sensitivity testing of discharge is important to identify the causative organism. In regions where brucellosis is a concern, serology may be performed. ## Treatment and management Treatment is often prolonged and challenging. It typically involves surgical debridement of necrotic tissue and draining tracts, long-term antibiotic therapy based on culture results, and anti-inflammatory medication. In brucellosis cases, specific protocols and regulatory considerations apply. Supportive care includes rest, proper wound management, and addressing any underlying saddle fit issues. Recurrence is common if the underlying cause is not resolved. ## When to call the vet Contact your veterinarian promptly if you notice swelling, heat, pain, or draining tracts over the withers. Early intervention improves the chance of successful resolution and reduces the risk of chronic scarring or systemic spread. ## Prevention Prevention centers on proper saddle fit and padding, avoiding trauma to the withers area, and maintaining good biosecurity in regions where brucellosis is present. Regular saddle checks and prompt treatment of any withers wounds or swelling are important. ## Frequently asked questions **Is fistulous withers contagious?** The traumatic form is not contagious. Infectious cases caused by *Brucella* can have public health and regulatory implications but are not directly transmitted horse-to-horse in most situations. **Can fistulous withers be cured?** Many cases can be resolved with aggressive surgical and medical treatment, but chronic or poorly managed cases often recur or leave significant scarring. **How long does treatment take?** Treatment is often prolonged, frequently requiring weeks to months of antibiotics and wound care, and sometimes multiple surgical interventions. This information is for educational purposes only. Always consult with a licensed veterinarian for diagnosis and treatment of your horse.
Swelling, heat, and pain over the withers; draining tracts with purulent or serosanguinous discharge; extreme sensitivity to touch or pressure in the withers region; severe girthiness and resistance to saddling; systemic illness (fever, lethargy) in infectious cases; chronic fibrosis and scarring in long-standing cases