In geriatric patients, there is a plethora of nutritional and illness-related parameters, resulting in a complex situation which hampers identification of risk factors.In the planned prospective study, the point and period prevalence of wound healing disorders (WHD) is examined at admission and at discharge in a cohort of 517 male and female geriatric patients. As the investigators are also interested to study the occurrence of WHD in patients with malnutrition (and other geriatric phenomena) compared to the prevalence of WHD in patients with a good nutritional Status.