Vasculitis is a group of diseases characterized by inflammation of blood vessels, which can affect arteries, veins, and capillaries throughout the body. This inflammation can lead to damage of the blood vessel walls, resulting in a range of symptoms such as pain, organ dysfunction, and even life-threatening complications. There are many different types of vasculitis, each with its own specific characteristics and patterns of organ involvement. Some forms of vasculitis are localized to certain organs or body systems, while others can be more widespread and affect multiple organs. Diagnosis of vasculitis typically involves a combination of medical history, physical examination, blood tests, imaging studies, and sometimes biopsy of affected tissues. Treatment for vasculitis often involves a combination of medications, such as corticosteroids, immunosuppressants, and biologic agents, to reduce inflammation and manage the symptoms of the disease. Research in the field of vasculitis focuses on better understanding the underlying causes of the disease, developing new and more effective treatments, and improving outcomes for patients with vasculitis. This includes studying the genetic and environmental factors that may contribute to the development of vasculitis, as well as exploring potential biomarkers for early diagnosis and monitoring of the disease.