What causes Subarachnoid Hemorrhage

What causes Subarachnoid Hemorrhage? 

Subarachnoid Hemorrhage can be traumatic but is commonly caused by a ruptured berry aneurysm.

Hypertension, larger size (especially >7 mm), and posterior circulation location are associated with aneurysm rupture.

Hypertension and smoking contribute to aneurysm growth.

Polycystic kidney disease and inherited connective tissue defects are also associated with intracranial aneurysms.


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