Complex sentence: In general, hemorrhage tends to occur before the age of 50 years, in patients with a family history of intracranial hemorrhage, those who have survived a previous bleed, have aneurysms larger than 10 mm and have uncontrolled hypertension.
Split into simpler sentences: In general, hemorrhage tends to occur before the age of 50 years. In patients with a family history of intracranial hemorrhage, those who have survived a previous bleed have aneurysms larger than 10 mm, and have uncontrolled hypertension.