Atrioventricular block is an arrhythmia that does not usually cause back pain. If atrioventricular block causes back pain, you need to go to the cardiology department immediately for further examination to see if the heart rate is too slow to induce myocardial ischemia, and then a pacemaker may need to be installed. If the back pain is caused by muscle strain, it is recommended to consult orthopedics for treatment. Atrioventricular block is categorized as first-degree, second-degree type 1, second-degree type 2 and third-degree. First degree and second degree type 1, will not cause obvious discomfort symptoms, not to mention back pain. Second degree type 2 and third degree, there are long intervals in the heart rhythm, the patient may be dizzy, blackout, if the patient also has coronary artery disease, the long intervals may induce myocardial ischemia attack, there may be back pain. This type of atrioventricular block causes back pain and requires a pacemaker and coronary angiography, with intervention to treat the coronary vessels if necessary. If muscle strain or sternal pain is considered by examination, orthopedic consultation may be recommended. If the back pain is caused by first or second degree type 1 AV block, further examination is recommended to clarify the cause of the pain, and symptomatic treatment is recommended under the guidance of the doctor.