Vaasa Central Hospital is offering newborn screening for rare congenital metabolic diseases. Approximately 1:2000 babies have a metabolic or hormonal disorder, which can be found by newborn screening. Without screening the diagnosis of these diseases is difficult. Early diagnosis of the diseases is important to enable the right treatment as early as possible in order to avoid any potential permanent damage caused to the baby. The sample is taken from the baby's heel at the age of 2-5 days.