A fistula is an abnormal connection or passageway that forms between two organs, vessels, or structures in the body. Fistulas can develop anywhere in the body but are most commonly associated with the digestive, urinary, and reproductive systems. They can cause various symptoms and complications depending on their location and underlying cause. Understanding the causes, symptoms, diagnosis, and treatment options for fistulas is essential for effective management and prevention of complications. Prompt medical evaluation and appropriate intervention can help alleviate symptoms, prevent recurrent infections, affected by fistulas.