Pituitary stroke is a very dangerous and rare disease, often with typical symptoms such as: sudden headache, impaired vision, impaired consciousness, the main cause is pituitary bleeding.

Intraventricular hemorrhage is usually primary or secondary, in some cases, the cause of intraventricular hemorrhage may not be clearly identified, but half of people with intraventricular hemorrhage have chronic hypertension that is not obvious, because it is too small to be seen on CT or MRI scans.