This type of arteritis is most common in females, with a median age of 25 years.[7] Takayasu arteritis is more common in women of Asian descent who are in their reproductive years.[7] However, over the past decades, its incidence in Africa, Europe, and North America has been increasing.[7] Takayasu arteritis is an inflammatory disease that mainly affects the larger vessels such as the aorta and its surrounding branches.[7] Research focused on Takayasu arteritis in the western parts of the world remains limited. An estimation suggests that, each year, the number of cases per million people is 2.6.[8]