Low blood pressure due to chills may be due to physiological reasons such as cold weather, thinness and weakness, as well as disease factors such as hypothyroidism and shock. 1. Physiological factors: when the weather is too cold, without good warming measures, may lead to some people have a cold body. If the patient’s body is thin and weak, and the blood circulation is not good, the phenomenon of low blood pressure may also occur. 2. Hypothyroidism: Hypothyroidism is usually a low metabolic disease caused by medication, surgery and other factors that lead to low production of thyroid hormones or metabolic utilization disorders. This kind of patients can be manifested as chills, low blood pressure and other symptoms, but also accompanied by a drop in heart rate, fatigue and other symptoms. 3. Shock: when trauma and other factors lead to massive blood loss, or because of violent vomiting and other reasons resulting in a large loss of body fluids, it will trigger hypovolemic shock, or traumatic shock. When shock occurs, the body will experience chills, a drop in blood pressure, and a decrease in urine output. There are many reasons for low blood pressure and chills, so it is recommended that you seek medical attention in time to avoid delaying your condition.