累及基底节的出血多为非创伤性，由高血压引起，高血压破坏和削弱小贯穿动脉，可见出血肿块使正中线移位，通常继发脑水肿，可形成脑疝。
Hemorrhages involving the basal ganglia area (the putamen in particular) tend to be non-traumatic and caused by hypertension, which damages and weakens the small penetrating arteries. A mass effect with midline shift, often with secondary edema, may lead to herniation.