You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Most common cause of subarachnoid hemorrhage is: and explain in detail?
Ans. is 'b' Berry aneurysm [Reference Harrison 17/e p 1726-1728 & 16/e page 2390, 2388 (15th/e page 2388)1Actually head trauma is the most common cause of subarachnoid hemorrhage.Rupture of berry (Saccular) aneurysm is the 2nd most common cause of subarachnoid hemorrhage, but among the given options it is the most common.