The possible clinical causes of low blood pressure in diabetic patients include drug factors, cardiac disease factors, and volume insufficiency caused by other reasons, etc. It is recommended to consult a doctor in time. 1. Drug factors: some diabetic patients have hypertension and other diseases in addition to diabetes mellitus, so they need to use antihypertensive drugs to maintain the stability of blood pressure. When the antihypertensive drugs are used excessively or the metabolism of the drugs is abnormal, it may make the blood concentration rise and the symptoms of hypotension appear. 2. Heart disease factors: some diabetic patients also suffer from myocardial infarction or cardiac insufficiency and other heart diseases, which may cause the heart pumping function to decline and blood pressure drop. 3. Volume insufficiency caused by other reasons: diabetic patients have volume insufficiency due to the following related conditions, such as profuse sweating, vomiting, diarrhea, or gastrointestinal bleeding, traumatic bleeding, etc., which may lead to volume insufficiency and hypotension. If the condition persists or worsens, hospitalization is recommended.