A sudden rise in hypertension can be characterized by chills in the extremities. Hypertension is categorized into primary hypertension and secondary hypertension. Both types may suddenly experience a sharp rise in blood pressure. Primary hypertension may be caused by over-excited emotions, excessive mental stress, discontinuation of antihypertensive drugs and other reasons for the sudden increase in blood pressure, which will cause sudden contraction of the blood vessel walls, as well as abnormal metabolism, you will experience symptoms such as chills in the extremities, profuse sweating, and pallor. Secondary hypertension in renal vascular hypertension often appears blood pressure suddenly aggravated, if the patient often appears blood pressure suddenly increased, should be suspected of this disease, blood pressure suddenly increased leading to cold extremities, may be because of the increase in pressure on the blood vessel wall, cardiac output suddenly increased leading to metabolic abnormalities, but also may be due to the stimulation of the nervous system and lead to the patient sweating, cold extremities. The pathogenesis and etiology of hypertension are not yet fully understood. If patients have the above symptoms, they should go to a regular hospital for treatment immediately and do not delay their condition.