Slow heart rate and high blood pressure are mainly considered to be related to heart disease, hypothyroidism, renal insufficiency or medication. 1. Heart disease: If the patient has coronary heart disease, it will easily lead to myocardial ischemia, which will cause slow heart rate and high blood pressure. 2. Hypothyroidism: If hypothyroidism exists, it will easily affect the hormone level in the body, which will lead to slow heart rate and high blood pressure. 3. Renal insufficiency: some patients with high blood pressure who suffer from renal insufficiency will easily lead to electrolyte disorders in the body, which will lead to the phenomenon of slow heart rate and high blood pressure. 4. Drugs: If hypertensive patients are treated with drugs, such as using beta-blockers to lower blood pressure, it is easy to trigger the phenomenon of heart rate slowing down, thus resulting in the phenomenon of slow heart rate and high blood pressure. If the symptoms persist for a long time and affect daily life, you need to consult a doctor as soon as possible, and then targeted treatment.