Blood pressure with a low pressure of 37mmHg and a high pressure of 74mmHg is dangerous. The lower limit of normal adult blood pressure is usually 60mmHg diastolic (low pressure) and 90mmHg systolic (high pressure). If the low pressure is 37mmHg and the high pressure is 74mmHg, it is usually a manifestation of hypotension. Low blood pressure patients may have dizziness, weakness and other uncomfortable symptoms, if the blood pressure continues to fall, there may also be hypotensive shock, and in serious cases, it may also lead to insufficient blood supply to the heart, heart failure. Usually need to pay attention to strengthen the nutrition, eat more meat, dairy and other protein-rich food, but also appropriate intake of salt, promote the plasma osmolality of the rise, if necessary, you can also follow the doctor’s instructions for the application of norepinephrine, dopamine and other drugs to appropriate treatment, so as to promote the recovery of blood pressure, to maintain good health. Specific diagnosis and treatment should follow the doctor’s instructions.