A large number of studies have been done in the general population comparing ambulatory blood pressure monitoring (ABPM) to casual, office based and home measures of blood pressure (BP). The results have clearly demonstrated that ABPM gives a more accurate representation of BP and arguably should be used as part of routine patient care. ABPM has been shown to reveal patients both with white-coat and with masked HTN, nocturnal HTN and lack of nocturnal dipping. The information has been successfully used to more accurately and aggressively treat patients. Compared to the general population, the data in the kidney transplant population is relatively limited. Ambulatory BP measures afford us a non-invasive, highly accurate way to evaluate and treat kidney transplant recipients.