RESUMO
Haj is one of the five cardinal components of Islam commonly known as the five pillars of Islam. Approximately two million Muslims perform it each year. Haj involves travel to the holy sites in and around Mecca and Medina during a specified short period of time in a limited space; not usually inhabited by such a large number of people. This article deals with the effects of this event on diabetes and its management. The importance of this arises from the fact during Haj; the person's life routine changes as he travels to a different place of his own for a period of 4-6 weeks where geography; weather; diet; and habits are different. During Haj most people live what is effectively a very basic life in very crowded places. Therefore; medical conditions; such as diabetes; whose management depends on a stable routine; would predictably be affected significantly. People with diabetes should have enough time to consider a management plan for their diabetes. The objectives are to achieve a good control and avoid any complications that may be particularly associated with the conditions faced during Haj