Whether high blood pressure is normal or not in thin elderly people should depend on the actual situation; only occasional increase in blood pressure may be a normal phenomenon; if high blood pressure exists for a long time, it may be the existence of hypertensive disease. If the blood pressure is normal in daily life, it may be normal to have higher blood pressure when the mood fluctuates or the diet is irregular, and the blood pressure may return to normal after adjusting the psychological state, maintaining stable mood, and adjusting the dietary habits. Thin elderly people with high blood pressure for a long time, without lowering the situation, indicating abnormal, may be the existence of hypertension, may be hereditary, age, excessive alcohol consumption and other factors lead to, should also be examined and treated by a doctor, to avoid causing other complications.