Brain hemorrhage foot swelling can be dangerous. There are three types of causes of brain hemorrhage foot swelling: 1. hypoproteinemia. 2. edema of the hypophysis area due to reduced activity. 3. deep vein thrombosis. The first two are not dangerous, while the third type of deep vein thrombosis can lead to life-threatening conditions. Deep vein thrombosis occurs in the limb on the paralyzed side due to decreased movement of the limb on the paralyzed side and no muscle contraction. If family members do not help the patient with passive movement and massage, blood circulation will be poor, leading to stagnation of blood and easy formation of thrombosis. When a thrombus is formed in the deep vein it is a red thrombus and is not strong. When the patient’s muscles are squeezed, the thrombus is easily dislodged, and if it enters the heart with the blood return, it can enter the lungs through the heart again, causing pulmonary embolism, leading to acute respiratory failure and death.