This observational cohort study will try to strengthen the therapeutic evidence for ICH treatment by generating a large (n>1000) cohort of consecutive ICH patients treated a tertiary care hospital in Germany. Further, collaborative efforts will be undertaken to integrate and compare data from the present study to existing cohorts to validate specific findings. Patients will be identified from an institutional prospective stroke registry by the diagnosis of spontaneous primary ICH during a time period from 2006-2015. Only patients with spontaneous primary ICH will be included, other secondary etiologies will be excluded: i.e. tumors, trauma, vascular malformations, anticoagulation at presentation etc. will be excluded. Clinical data on demographics, medical history, pre-ICH medication exposures and laboratory results will be obtained by medical charts, institutional databases or prospective registries, supplemented by structured interviews or by review of all available medical records. Patient-derived follow-up information will be corroborated by review of pertinent medical records. An estimated total number of greater 1000 patients will be reviewed for this investigation. In detail the following parameters will be evaluated: - prior medical history (including CHADS-VASC-Score, HAS-Bled Score, vascular risk factors), - functional status prior admission (mRS), - neurological admission status (NIHSS, GCS), - imaging characteristics, - time intervals: symptom onset until admission, imaging, therapy initiation, - acute blood pressure management, - complications (hemorrhagic- or ischemic-events, infectious) and treatment (surgical treatment, mode of antithrombotic treatment or prophylaxis of systemic thromboembolism, intraventricular fibrinolysis, etc.), - mortality rates, - functional outcome (mRS);