Low blood pressure, i.e. systolic blood pressure <90mmHg and/or diastolic blood pressure <60mmHg, will cause insufficient blood perfusion to the heart, brain, kidneys and other organs, and in serious cases, it may lead to organ failure, and a sudden drop in blood pressure may also lead to shock and thus threaten life. Low blood pressure may be caused by excessive blood loss, allergy, dehydration or severe heart disease, etc. Insufficient perfusion to tissues and organs will result in ischemic manifestations such as dizziness, blackouts, fatigue, weakness, etc. If not handled in a timely manner, severe organ failure will occur due to persistent ischemia, resulting in irreversible and serious consequences such as shock and sudden death. If you experience low blood pressure, you should go to the hospital immediately to identify the cause of the disease and give targeted treatment to prevent serious complications.