Cardiovascular disease may not have symptoms in the early stage, or mostly some common symptoms, such as chest tightness, shortness of breath, dizziness, etc., usually need detailed examination to confirm the diagnosis. There are many kinds of cardiovascular diseases, and typical symptoms are rarely seen in the early stage, which may be felt only for a short period of time, mild chest tightness, shortness of breath, dizziness, dyspnea, palpitation, cyanosis and so on or no symptomatic manifestations, for example, high blood pressure has a slow onset, and is mostly detected when blood pressure is measured or when it is accompanied by other heart, brain and other complications; there may be a mild laborious dyspnea in the early stage of left heart failure, and so on. Although the early symptoms of cardiovascular disease are weak, when there are obvious symptoms it means that the disease has progressed to a certain degree, so if you find similar symptoms, it is recommended to go to the hospital for examination in a timely manner.