For patients with hypertension, the dose of antihypertensive drugs needs to be reasonably increased under the advice of a doctor when blood pressure rises in winter. Some hypertensive patients have normal blood pressure in summer, but increase in winter, this is because the winter temperature is often lower, the cold stimulation will lead to peripheral vasoconstriction, peripheral resistance increases, thus causing the blood pressure to rise. At this time, patients need to consult a doctor in a timely manner, under the guidance of the doctor to actively adjust the dosage, do not arbitrarily adjust or even stop the drug. In addition, patients in cold areas also need to pay attention to keep warm, reduce outdoor activities in winter, and pay more attention to the diet, to avoid excessive intake of high-salt, high-fat food, aggravating the progress of the disease.