Simple high lipoprotein A usually does not have obvious symptoms, but if you have cardiovascular and cerebrovascular diseases and other underlying diseases, high lipoprotein A may cause dizziness, chest tightness and other symptoms. In general, simple high lipoprotein A does not usually have obvious symptoms, but long-term high lipoprotein A is likely to lead to atherosclerosis, which in turn causes the narrowing of blood vessels, leading to a variety of symptoms. If you have cardiovascular disease, it may cause dizziness, headache, chest tightness, chest pain and other symptoms; if you have cerebrovascular disease, such as cerebral infarction, you may experience dizziness, slurred speech and other symptoms; if you have cerebral hemorrhage, you may experience sudden fainting and other symptoms. Therefore, when lipoprotein A is elevated, a doctor is needed to judge the subsequent treatment according to the specific situation.