Platelet high main need to pay attention to the following four points: 1, adjust the mentality: maintain optimism, avoid tension, establish confidence to overcome the disease; 2, diet: pay attention to drink more water, diet reasonable, to ensure the intake of various nutrients, avoid eating spicy and stimulating food, do not favoritism; 3, appropriate exercise: work and rest, appropriate aerobic exercise, not only can relieve stress, relieve fatigue, but also can enhance physical fitness. In addition, we should ensure sufficient sleep, not overworked, and have a regular life; 4, if there is thrombosis, we should actively treat it to prevent serious complications caused by thrombus dislodgement. If there is bleeding, usually pay attention to bed rest and eliminate tension. 5. Patients with splenomegaly are prone to spleen rupture and should avoid collision.