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.

The investigators will determine the prevalence of impaired wound healing upon admission to the hospital as well as the incidence of new wound healing disorders during hospital stay with specific focus on malnutrition and other important nutritional parameters in geriatric patients. Therefore the investigators intend to study consecutively admitted patients both at admission and at discharge and monitor them during hospital stay.

The investigators will investigate the associations between the individual nutritional status and body composition parameters (such as sarcopenia) and WHD in geriatric patients, taking both medical variables and the frailty syndrome into account.

Inclusion Criteria:

• Age ≥ 60 years
• Informed written consent
• Normal cognitive status according to Mini-Mental State Examination (MMSE ≥ 24 points)
• Life expectancy of > 3 months according to treating doctor
• Proficient in German

Exclusion Criteria:

• Lack or incapacity of informed consent
• MMSE < 24
• Life expectancy < 3 months according to assessment by the attending physician
• Short term patients (< 3 days of hospital stay)
• Lack of German language

Geriatric patients will be recruted upon admission to the hospital.