After the blood pressure drops, the method of raising blood pressure should be chosen according to the specific value of low blood pressure, the systemic condition, and the degree of urgency of the disease: 1. For acute heart failure, especially the hypotension caused by heart pump failure, it is necessary to use stronger blood pressure raising drugs, often choosing vasoactive drugs such as dopamine or norepinephrine intravenous drip or micropump input. 2. For hypotension caused by excessive blood loss, such as excessive blood loss due to severe trauma or insufficient blood production due to anemia, a large amount of rehydration is needed, often choosing to enter whole blood or plasma, and in emergencies, colloidal fluid vasodilating drugs can also be chosen to replace the treatment. 3, if the hypotension is caused by poor physical development or thinness, it is also necessary to strengthen nutrition, outdoor In case of hypotension caused by poor physical development or thinness, it is also necessary to change the state of hypotension by strengthening nutrition and playing outdoor sports.