What are the causes of low blood pressure?

Low blood pressure is a disease that many of our friends suffer from. Low blood pressure can be divided into several stages. Generally, milder low blood pressure can be controlled through diet. If it exceeds a certain value, the doctor will recommend that the patient control blood pressure by taking medication. There are many causes of hypotension, such as physiological hypotension and pathological hypotension.

1. Physiological hypotension

The physiological hypotension state refers to a state in which the blood pressure values ​​of some healthy people have reached the hypotension standard but there are no subjective symptoms. After long-term follow-up, except for low blood pressure, there are no abnormalities such as ischemia and hypoxia in various systems and organs of the human body, and life expectancy is not affected.

2. Pathological hypotension

In addition to lowered blood pressure, it is often accompanied by symptoms of varying degrees and certain diseases. Hypotension can be divided into:

(1) Primary hypotension

Refers to a state of low blood pressure without obvious cause, such as physiological hypotension (constitutional hypotension) and pathological hypotension (hypotension).

(2) Secondary hypotension

It refers to the lowering of blood pressure caused by a disease of a certain organ or system in the human body. This low blood pressure can occur rapidly in a short period of time, resulting in signs of collapse and shock, which is called acute hypotension. For example, a sharp drop in blood pressure may be caused by massive bleeding, acute myocardial infarction, severe trauma, infection, allergy, etc. In most cases, hypotension occurs slowly and may gradually worsen. For example, hypotension caused by severe pulmonary tuberculosis, malignant tumors, malnutrition, cachexia, etc., its prevention and treatment mainly targets the primary disease.